CN114368843A - Plate heat exchanger for heating in northern cold-cold area - Google Patents

Abstract

The invention relates to a heat exchanger, in particular to a plate heat exchanger for heating in the northern cold region. Provided is a plate heat exchanger for heating in northern cold districts that reduces scale generation and scale removal costs. A plate heat exchanger for heating in a northern cold area, comprising: a base, a plate heat exchanger is placed on the back side of the top of the base; a base, a base is arranged on the front side of the top of the base, a water tank is arranged on the base, The side is connected with an inlet pipe for pumping in the used water; the output pipe, between the lower rear side of the water tank and the plate heat exchanger, is connected with an output pipe for pumping the scale-removed water. The stirring blade rotates to accelerate the mixing of the scale and the scale and corrosion inhibitor, to peel off the scale formed on the inner wall of the water tank, and to perform the primary treatment of the scale.

Description

A plate heat exchanger for heating in northern cold areas

technical field

The invention relates to a heat exchanger, in particular to a plate heat exchanger for heating in the northern cold region.

Background technique

The climate in the north is relatively dry, the water is more alkaline, and the radiator, that is, the heat exchanger, will have scale attached to the inner wall after it is used for a period of time. Heat exchange efficiency, and even cause heat exchanger blockage.

The application announcement No. 201620034417.4 discloses an ultrasonic descaling heat exchanger, which mainly uses an ultrasonic source to generate high-frequency vibration on the liquid. The cleaning method is expensive, and cannot reduce the amount of scale from the root cause, and cavitation also has a certain corrosive effect on the pipe wall.

Therefore, a plate heat exchanger for heating in northern cold districts is designed, which can reduce the generation of scale and reduce the cost of scale removal.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings of the prior art cleaning methods with high cost and inability to reduce the amount of scale from the source, a plate heat exchanger for heating in northern cold regions is provided that reduces scale generation and scale removal costs.

A plate heat exchanger for heating in a northern cold area comprises a base, a plate heat exchanger is placed on the back side of the top of the base; It is connected with an inlet pipe for pumping used water; an output pipe, between the lower rear side of the water tank and the plate heat exchanger, is connected with an output pipe for pumping the scale-removed water; automatic stirring mechanism, the inner side of the water tank is provided with An automatic stirring mechanism that accelerates the fusion of scale and corrosion inhibitor and scale; an inner wall scale cleaning mechanism, and an inner wall scale cleaning mechanism that scrapes off the scale on the outside of the water tank.

Further, the automatic stirring mechanism includes a mounting seat, the top of the water tank is symmetrically provided with a mounting seat in front and back, and a servo motor is connected between the mounting seats; a rotating shaft, the top of the water tank is rotatably provided with a rotating shaft, and the rotating shaft is provided with a plurality of stirring devices for rotating and accelerating mixing. leaf.

Further, the inner wall scale cleaning mechanism includes an installation frame, the upper left side of the water tank is connected with the installation frame, and the reciprocating screw rod is rotatably connected between the installation frame and the inner left side of the lower part of the water tank; the scraper, the reciprocating screw rod is threadedly provided with Scraper; belt, a belt is connected between the upper part of the reciprocating screw rod and the rotating shaft.

Further, it also includes an automatic input mechanism for scale and corrosion inhibitor, and the automatic input mechanism for scale and corrosion inhibitor includes an installation platform, an installation platform is arranged on the right side of the top of the water tank, a placement box is arranged on the installation platform, and the top of the right side of the placement box is arranged. The rotary type is provided with a sealing cover; the rotary table is provided with a rotary table on the rotating shaft; the input pipeline is connected with the input pipeline on the left side of the bottom of the placing box, and the upper part of the input pipeline is provided with a one-way valve to prevent water from flowing back when it is toggled.

Further, it also includes a scale prevention mechanism. The scale prevention mechanism includes installation guide posts. The bottom of the water tank is symmetrically provided with installation guide posts. Between the installation guide posts is a sliding connection with a placement plate. A first return spring is connected between the columns; ion exchange resin, the top of the placing plate is provided with a plurality of ion exchange resins that can reduce the generation of scale; the contact column, the outer side of the top of the placing plate is provided with a contact column; There is a cam that cooperates with the contact post.

Further, it also includes an isolation mechanism, the isolation mechanism includes a first screen, and the upper part of the water inlet pipe is provided with a first screen and a second screen; a connecting column, between the second screen and the outer side of the first screen There are multiple connecting posts connected.

Further, it also includes a heat exchanger limiting mechanism, the heat exchanger limiting mechanism includes mounting brackets, and the left and right sides of the rear side of the top of the base are provided with mounting brackets symmetrically in the front and rear; A limit plate is slidably connected between the installation brackets, and a second return spring is connected between the limit plate and the right side of the installation bracket.

Further, the scraper is arranged in a circular shape similar to the internal structure of the water tank.

The beneficial effects are:

1. The stirring blade rotates to accelerate the mixing of scale and scale and corrosion inhibitor, to peel off the scale generated on the inner wall of the water tank, and to perform primary treatment on the scale;

2. The scraper moves up and down to scrape off the scale adhering to the inner wall of the water tank, and complete the removal of the scale again;

3. The rotation of the turntable will drive the input port to continuously coincide with the input pipeline, thereby realizing the intermittent insertion of the scale and corrosion inhibitor to cooperate with the formation of scale;

4. The ion exchange resin can exchange and fuse with the ions in the water to reduce the formation of scale. At the same time, the ion exchange resin moves up and down to better fuse with the water to ensure the effect.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a sectional view of a part of the three-dimensional structure of the present invention.

FIG. 3 is a schematic three-dimensional structure diagram of the automatic stirring mechanism of the present invention.

4 is a cross-sectional view of the three-dimensional structure of the automatic stirring mechanism of the present invention.

FIG. 5 is a schematic three-dimensional structure diagram of the inner wall scale cleaning mechanism of the present invention.

FIG. 6 is a cross-sectional view of the three-dimensional structure of the inner wall scale cleaning mechanism of the present invention.

7 is a schematic diagram of the three-dimensional structure of the scale and corrosion inhibitor of the present invention.

8 is a cross-sectional view of the three-dimensional structure of the automatic feeding mechanism of the scale and corrosion inhibitor of the present invention.

FIG. 9 is a schematic three-dimensional structure diagram of the scale preventing mechanism of the present invention.

FIG. 10 is a schematic three-dimensional structure diagram of the isolation mechanism of the present invention.

11 is a cross-sectional view of the three-dimensional structure of the isolation mechanism of the present invention.

FIG. 12 is a schematic three-dimensional structural diagram of the limiting mechanism of the heat exchanger according to the present invention.

In the reference numbers: 1-base, 2-plate heat exchanger, 3-base, 4-water tank, 5-water inlet pipe, 6-output pipe, 7-automatic stirring mechanism, 71-mounting seat, 72-servo Motor, 73-rotating shaft, 74-stirring blade, 8-inner wall scale cleaning mechanism, 81-installation frame, 82-belt, 83-reciprocating screw, 84-scraper, 9-scale and corrosion inhibitor automatic input mechanism, 91 -installation table, 92-placement box, 93-sealing cover, 94-input pipeline, 95-check valve, 96-turntable, 10-scale prevention mechanism, 101-installation guide post, 102-placement plate, 103- First return spring, 104-ion exchange resin, 105-contact column, 106-cam, 11-isolation mechanism, 111-first screen, 112-connecting column, 113-second screen, 12-heat exchanger limit Position mechanism, 121-installation bracket, 122-second return spring, 123-limiting plate.

Detailed ways

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

A plate heat exchanger for heating in the northern cold area, as shown in Figures 1 to 6, includes a base 1, a plate heat exchanger 2, a base 3, a water tank 4, a water inlet pipe 5, an output pipe 6, automatic stirring The mechanism 7 and the inner wall scale cleaning mechanism 8, the plate heat exchanger 2 is placed on the rear side of the top of the base 1, the base 3 is provided on the front side of the top of the base 1, the base 3 is provided with a water tank 4, and the upper front side of the water tank 4 is connected with an inlet. The water pipe 5 is connected with an output pipe 6 between the lower rear side of the water tank 4 and the plate heat exchanger 2 .

The automatic stirring mechanism 7 includes a mounting seat 71, a servo motor 72, a rotating shaft 73 and a stirring blade 74. The top of the water tank 4 is symmetrically provided with a mounting seat 71, and a servo motor 72 is connected between the mounting seats 71. The rotating shaft 73 is provided with four stirring blades 74 , and the rotating shaft 73 is connected with the output shaft of the servo motor 72 through a coupling.

The inner wall scale cleaning mechanism 8 includes a mounting frame 81, a belt 82, a reciprocating screw rod 83 and a scraper 84. A mounting frame 81 is connected to the upper left side of the water tank 4, and the mounting frame 81 is rotatably connected to the inner left side of the lower part of the water tank 4. The reciprocating screw 83 has a threaded scraper 84 on the reciprocating screw 83 , and a belt 82 is connected between the upper part of the reciprocating screw 83 and the rotating shaft 73 .

First connect the household water pipe to the water inlet pipe 5, the used water will enter the water tank 4, and then enter the plate heat exchanger 2 through the output pipe 6 for reheating. When there is water in the water tank 4, the scale and corrosion inhibition will be The agent is poured, the servo motor 72 is started, and the output shaft of the servo motor 72 drives the stirring blade 74 to rotate through the rotating shaft 73, which accelerates the mixing of the scale and the scale and corrosion inhibitor, and removes the scale generated on the inner wall of the water tank 4. At the same time, the rotating shaft 73 The rotation drives the reciprocating screw rod 83 to rotate through the belt 82, and then drives the scraper 84 to move up and down to scrape the scale attached to the inner wall of the water tank 4. After the scraping is completed, the operation of the servo motor 72 is stopped, and the water after the scale is removed passes through the output pipe 6. Enter the plate heat exchanger 2 for reheating, and cooperate with reuse.

Example 2

On the basis of Example 1, as shown in Fig. 1, Fig. 7 to Fig. 9, an automatic scale and corrosion inhibitor injection mechanism 9 is also included, and the scale and corrosion inhibitor automatic injection mechanism 9 includes an installation table 91, a place The tank 92, the sealing cover 93, the input pipeline 94, the one-way valve 95 and the turntable 96, a mounting table 91 is provided on the right side of the top of the water tank 4, and a placing box 92 is provided on the mounting table 91. There is a sealing cover plate 93, a turntable 96 is provided on the rotating shaft 73, and the turntable 96 is located in the water tank 4 and has an input port.

It also includes a scale prevention mechanism 10. The scale prevention mechanism 10 includes an installation guide column 101, a placing plate 102, a first return spring 103, an ion exchange resin 104, a contact column 105 and a cam 106. The inner bottom of the water tank 4 is symmetrically arranged front and rear. There is an installation guide post 101, a placement plate 102 is slidably connected between the installation guide posts 101, the placement plate 102 is rotatably connected with the rotating shaft 73, and a first return spring 103 is connected between the top of the placement plate 102 and the installation guide post 101. Four ion exchange resins 104 are arranged on the top of the disc 102 , contact posts 105 are arranged on the outer side of the top of the disc 102 , and cams 106 are arranged at the bottom of the reciprocating screw 83 , and the cams 106 cooperate with the contact posts 105 .

When the input port is rotated, it will overlap with the input pipeline 94, the sealing cover 93 is turned upward to open, and the scale and corrosion inhibitor is put into the placing box 92. At this time, the turntable 96 blocks the input pipeline 94, and the scale and corrosion inhibitor does not. It will flow out, and when the rotating shaft 73 rotates, it will drive the turntable 96 to rotate, and then drive the input port to continuously overlap with the input pipeline 94, so as to realize the intermittent small amount of the corrosion inhibitor and the number of times to cooperate with the generation of scale; ion exchange resin 104 can exchange and fuse with ions in the water to reduce scale formation. When the reciprocating screw 83 rotates, it will drive the cam 106 to rotate, and then continuously squeeze the contact column 105 to move downward. The downward movement of the contact column 105 will drive the placing plate 102 and the The ion exchange resin 104 moves downward, and the first return spring 103 is stretched. When the cam 106 rotates to be out of contact with the contact column 105, the first return spring 103 resets and drives the placing plate 102 and the ion exchange resin 104 to move up and reset, so that The reciprocating driving of the ion exchange resin 104 to continuously move up and down can make it better fuse with water and ensure the effect.

Example 3

On the basis of Embodiment 2, as shown in FIGS. 1 and 10 to 12 , an isolation mechanism 11 is further included. The isolation mechanism 11 includes a first screen 111 , a connecting column 112 and a second screen 113 . A first screen 111 and a second screen 113 are arranged in the upper part of the water pipe 5 . The second screen 113 is located below the first screen 111 and is connected to the outside of the first screen 111 with a plurality of connecting columns 112 .

It also includes a heat exchanger limiting mechanism 12. The heat exchanger limiting mechanism 12 includes a mounting bracket 121, a second return spring 122 and a limiting plate 123. The left and right sides of the rear side of the top of the base 1 are symmetrically provided with mounting brackets. For the bracket 121 , a limit plate 123 is slidably connected between the two installation brackets 121 on the same vertical side, and a second return spring 122 is connected between the limit plate 123 and the right side of the installation bracket 121 .

When the water is drawn in through the water inlet pipe 5, the solid substances contained in the interior will be filtered through the first screen 111 and the second screen 113, so as to reduce the influence on the later scale treatment; when the plate heat exchanger 2 is placed, the limit is The position plate 123 is forced to move outward to drive the second return spring 122 to be compressed. After the placement is completed, the limit plate 123 will move inward in a small range under the restoring force of the second return spring 122 to realize the limit of the plate heat exchanger 2 . position to prevent being knocked over.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of the invention It is defined by the appended claims and their equivalents.

Claims (8)

1. a plate heat exchanger for heating in a northern cold area, is characterized in that, comprising: a base, a plate heat exchanger is placed on the rear side of the top of the base; a base, the front side of the top of the base is provided with a base, There is a water tank, the upper front side of the water tank is connected with an inlet pipe for pumping used water; the output pipe, between the lower back side of the water tank and the plate heat exchanger is connected with an output pipe for pumping the scale-removed water; automatic For the stirring mechanism, the inner side of the water tank is provided with an automatic stirring mechanism that accelerates the fusion of the scale and corrosion inhibitor and the scale; the inner wall scale cleaning mechanism, the outer side of the water tank is provided with an inner wall scale cleaning mechanism that scrapes the scale. 2. A plate heat exchanger for heating in a northern cold area as claimed in claim 1, wherein the automatic stirring mechanism comprises: a mounting seat, the top of the water tank is symmetrically provided with a mounting seat, and a servo is connected between the mounting seats Motor; rotating shaft, the top of the water tank is rotatably provided with a rotating shaft, and a plurality of stirring blades for rotating and accelerating mixing are arranged on the rotating shaft. 3. A plate heat exchanger for heating in a northern cold area as claimed in claim 2, wherein the inner wall scale cleaning mechanism comprises: a mounting frame, the upper left side of the water tank is connected with a mounting frame, and the mounting frame is connected to the lower part of the water tank. A reciprocating screw rod is rotatably connected between the left sides; a scraper is provided with a threaded scraper on the reciprocating screw rod; a belt is connected between the upper part of the reciprocating screw rod and the rotating shaft. 4. A plate heat exchanger for heating in a northern cold region as claimed in claim 3, characterized in that it also includes an automatic input mechanism for scale and corrosion inhibitor, and the automatic input mechanism for scale and corrosion inhibitor comprises: an installation platform , there is an installation table on the right side of the top of the water tank, a placement box is installed on the installation table, and a sealing cover is provided on the top of the right side of the placement box. The upper part of the pipeline is equipped with a one-way valve to prevent the backflow of water when it is toggled. 5. A plate heat exchanger for heating in a northern cold area as claimed in claim 4, characterized in that it also includes a scale prevention mechanism, and the scale prevention mechanism includes: installation guide posts, symmetrically arranged front and rear in the bottom of the water tank. There are installation guide posts, and a placement plate is slidably connected between the installation guide posts, and a first return spring is connected between the top of the placement plate and the installation guide post; ion exchange resin, the top of the placement plate is provided with a plurality of Ion exchange resin; contact column, a contact column is arranged on the outer side of the top of the placing plate; cam, the bottom of the reciprocating screw rod is provided with a cam matched with the contact column. 6. A plate heat exchanger for heating in a northern cold area as claimed in claim 5, characterized in that it further comprises an isolation mechanism, and the isolation mechanism comprises: a first screen, and the inner upper part of the water inlet pipe is provided with a first screen. A screen and a second screen; a connecting column, and a plurality of connecting columns are connected between the second screen and the outside of the first screen. 7. A plate heat exchanger for heating in a northern cold area as claimed in claim 6, further comprising a heat exchanger limiting mechanism, the heat exchanger limiting mechanism comprises: a mounting bracket, a The left and right sides of the side are provided with installation brackets symmetrically in the front and rear; the limit plate, the two vertical installation brackets on the same side are connected with the limit plate in a sliding type, and the limit plate and the right side of the installation bracket are connected with a third plate. Two return springs. 8 . The plate heat exchanger for heating in northern cold regions according to claim 7 , wherein the scraper is arranged in a circular shape similar to the internal structure of the water tank. 9 .

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