Multi-stage decontamination plate heat exchanger

Abstract

The utility model discloses a multistage decontamination plate heat exchanger, including cylinder, water inlet round pipe, lining connecting pipe, sewage discharge straight pipe and sewage discharge bend pipe, the cylinder includes stainless steel filter screen, the stainless steel filter screen is evenly provided with water filter holes, one end of the stainless steel filter screen is communicated with the water inlet round pipe, the other end of the stainless steel filter screen is communicated with the lining connecting pipe, and the water inlet round pipe is communicated with the lining connecting pipe. A lining connecting pipe is installed on the inner side of the other end of the stainless steel filter screen, a flange plate fixedly connected with the lining connecting pipe is arranged on the end face of the other end of the stainless steel filter screen, the flange plate seals the end face of the stainless steel filter screen and a pipe opening of the lining connecting pipe, and the straight sewage discharging pipe penetrates through the flange plate and is communicated with the interior of the stainless steel filter screen. And the sewage discharge straight pipe is communicated with the sewage discharge bent pipe. According to the multi-stage decontamination plate heat exchanger, particle impurities in cold and hot media can be filtered through the built-in dirt separator, the plate heat exchanger can be effectively prevented from being blocked, the built-in dirt separator can be reversely washed without shutdown, the built-in dirt separator is prevented from being blocked, and the circulation performance of the plate heat exchanger is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate heat exchanger technical field, concretely to a multistage decontamination plate heat exchanger. BACKGROUND

[0002] The existing plate heat exchanger does not set up the decontamination device inside, cannot realize decontamination operation, and the plate heat exchanger is blocked due to the inferior quality of medium, so that the plate heat exchanger needs to stop running for a long time to clean to continue running, which will bring great trouble to the user, and even will make the plate heat exchanger damage. UTILITY MODEL CONTENTS

[0003] The utility model discloses a multistage decontamination plate heat exchanger to solve the problem in the above background.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a multistage decontamination plate heat exchanger, including cylinder, water inlet round pipe, lining connecting pipe, blowdown straight pipe and blowdown elbow, the cylinder includes stainless steel filter screen, the stainless steel filter screen is evenly provided with water filtering hole, one end of the stainless steel filter screen is connected with water inlet round pipe, the inner side of the other end of the stainless steel filter screen is installed with lining connecting pipe, the other end face of the stainless steel filter screen is equipped with the flange plate that is connected with the fixed lining connecting pipe, the flange plate closes the end face of the stainless steel filter screen and the pipe orifice of lining connecting pipe, the blowdown straight pipe penetrates the flange plate and is connected with the inside of the stainless steel filter screen, the blowdown straight pipe and blowdown elbow are communicated with each other, and the connecting position of blowdown straight pipe and blowdown elbow is equipped with the valve.

[0005] Preferably, the stainless steel filter screen is sequentially provided with longitudinal reinforcing round pipes between the water inlet round pipe and the lining connecting pipe.

[0006] Preferably, the stainless steel filter screen is sequentially provided with transverse reinforcing ribs along the circumferential direction, and the transverse reinforcing ribs are connected and fixed with the longitudinal reinforcing round pipes.

[0007] Preferably, the valve is a ball valve located at the connecting position between the pipe of the blowdown straight pipe and the pipe of the blowdown elbow.

[0008] Preferably, the cylinder is installed at the cold medium inlet or the hot medium inlet of the plate heat exchanger.

[0009] Preferably, the water inlet round pipe, the lining connecting pipe, the longitudinal reinforcing round pipe, the transverse reinforcing rib and the flange plate are all made of stainless steel material.

[0010] Preferably, the stainless steel filter screen is composed of three layers of filter screens, and the stainless steel filter screen surrounds a cylindrical shape.

[0011] Compared with the prior art, the beneficial effects of the multi-stage dirt-removing plate heat exchanger are that: the multi-stage dirt-removing plate heat exchanger can filter the particulate impurities in the cold and hot medium through the built-in dirt-removing device, can effectively prevent the plate heat exchanger from being blocked, can reverse flush the built-in dirt-removing device without stopping the machine, so that the plate heat exchanger has better flow performance, the particulate impurities in the built-in dirt-removing device can be discharged through the blow-off straight pipe, when the valve is opened, a negative pressure can be formed in the built-in dirt-removing device, which is beneficial to the blow-off operation, and the multi-stage dirt-removing plate heat exchanger has the advantages of convenient, rapid and convenient maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional schematic view of the utility model structure;

[0013] Fig. 2 It is a front view of the utility model.

[0014] In the drawing: 1, cylinder, 2, stainless steel filter screen, 3, water inlet round pipe, 4, inner lining connecting pipe, 5, longitudinal reinforcing round pipe, 6, transverse reinforcing rib, 7, flange plate, 8, blow-off straight pipe, 9, blow-off elbow, 10, valve, 11, water filtering hole. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0016] Please refer to Figs. 1-2The utility model provides a technical scheme: multistage decontamination plate heat exchanger, including cylinder 1, water inlet round pipe 3, inner lining connecting pipe 4, blowdown straight pipe 8, blowdown elbow 9 and plate heat exchanger, cylinder 1 includes stainless steel filter screen (three layer filter screen is formed) 2.Stainless steel filter screen 2 surrounds the cylindrical shape, and evenly has filter water hole 11 on stainless steel filter screen 2, and the one end of stainless steel filter screen 2 is connected and is installed with water inlet round pipe 3, and the other end of stainless steel filter screen 2 is installed with inner lining connecting pipe 4 in the inside, and the other end face of stainless steel filter screen 2 is equipped with the flange plate 7 of being connected with the fixed inner lining connecting pipe 4, and the flange plate 7 closes the end face of stainless steel filter screen 2, the pipe orifice of inner lining connecting pipe 4.Blowdown straight pipe 8 penetrates flange plate 7 and is connected with the inside of stainless steel filter screen 2, and blowdown straight pipe 8 and blowdown elbow 9 are communicated with each other, and the position where blowdown straight pipe 8 and blowdown elbow 9 are connected is equipped with valve 10, and the ball valve of valve 10 is located at the position where the pipe of blowdown straight pipe 8 and the pipe of blowdown elbow 9 are connected.The cylinder 1 of the utility model is installed at the cold medium import or hot medium import of plate heat exchanger, first, the stainless steel filter screen 2 is not completely put into plate heat exchanger, and the water inlet round pipe 3 of the one end of stainless steel filter screen 2 exposes the movable plate end face 0.4m, then the flange plate 7 is rotated and installed with plate heat exchanger, then the positioning nut is screwed, finally, the built-in decontamination device is completely put into plate heat exchanger.

[0017] Stainless steel filter screen 2 is sequentially installed with longitudinal reinforcing round pipe 5 between water inlet round pipe 3 and inner lining connecting pipe 4.

[0018] The utility model preferably makes water inlet round pipe 3, inner lining connecting pipe 4, longitudinal reinforcing round pipe 5, transverse reinforcing rib 6, flange plate 7 all by stainless steel material.

[0019] Its detailed connecting means is the technology known in the art, and the following mainly introduces working principle and process, and the specific work is as follows.

[0020] When using, when the medium enters the built-in decontamination device inside plate heat exchanger from the import of plate heat exchanger, the particle impurities in the medium are intercepted in the stainless steel filter screen 2 of built-in decontamination device, when the import and export pressure difference increases, valve 10 can be opened, at this time, the system is pressure-relieved and drained, and a negative pressure area with a relative pressure lower than the outside of stainless steel filter screen 2 appears on the inside of stainless steel filter screen 2 of built-in decontamination device, forcing part of the medium to flow from the outside of stainless steel filter screen 2 into the inside of stainless steel filter screen 2, and the impurity particles on the inner wall of stainless steel filter screen 2 are discharged from blowdown straight pipe 8 with water flow, and the equipment produces without interruption in this process; the ball valve of valve 10 regularly closes the import and export valve, opens flange plate 7, and takes out built-in decontamination device to clean, which is convenient and practical.

[0021] In the description of the utility model, need understanding is, the term "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0022] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, so the features with "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage dirt removal plate heat exchanger, characterized by: The utility model provides a filter screen of plate heat exchanger, including cylinder (1), water inlet round pipe (3), inner lining connecting pipe (4), blowdown straight pipe (8) and blowdown elbow (9), cylinder (1) includes stainless steel filter screen (2), uniform water filter hole (11) is set up on the stainless steel filter screen (2), the one end of stainless steel filter screen (2) is connected and installed with water inlet round pipe (3), the inboard of another end of stainless steel filter screen (2) is installed with inner lining connecting pipe (4), and the other end face of stainless steel filter screen (2) is equipped with with inner lining connecting pipe (4) fixed flange plate (7), the flange plate (7) closes stainless steel filter screen (2) end face and inner lining connecting pipe (4) pipe orifice, blowdown straight pipe (8) penetrates flange plate (7) and is connected with stainless steel filter screen (2) inside, blowdown straight pipe (8) and blowdown elbow (9) intercommunication, and the connecting position of blowdown straight pipe (8) and blowdown elbow (9) is equipped with valve (10).

2. A multi-stage dirt removal plate heat exchanger according to claim 1, characterized in that The stainless steel filter screen (2) is sequentially provided with a longitudinal reinforcing circular pipe (5) between the water inlet round pipe (3) and the inner lining connecting pipe (4).

3. A multi-stage dirt removal plate heat exchanger according to claim 2, characterized in that The stainless steel filter screen (2) is sequentially provided with a transverse reinforcing rib (6) along a circumferential direction.

4. A multi-stage dirt eliminator plate heat exchanger according to claim 1, characterized in that: The valve (10) is a ball valve located at a connecting position between the blowdown straight pipe (8) and the blowdown elbow (9).

5. A multi-stage dirt removal plate heat exchanger according to claim 1, characterized in that The cylinder (1) is installed at a cold medium inlet or a hot medium inlet of the plate heat exchanger.

6. A multi-stage dirt eliminator plate heat exchanger according to claim 1, characterized in that: The water inlet round pipe (3), the inner lining connecting pipe (4), the longitudinal reinforcing circular pipe (5), the transverse reinforcing rib (6) and the flange plate (7) are all made of stainless steel.

7. A multi-stage dirt removal plate heat exchanger according to claim 1, characterized in that: The stainless steel filter screen is composed of three layers of filter screens, and the stainless steel filter screen (2) forms a cylindrical shape.

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