CN212962953U

CN212962953U - Plate heat exchanger with flow adjusting device

Info

Publication number: CN212962953U
Application number: CN202021182336.1U
Authority: CN
Inventors: 王金贺; 李卷科; 张家行; 刘家胜
Original assignee: Hebei Jiante Building Installation Engineering Co ltd
Current assignee: Hebei jiante New Energy Development Co.,Ltd.
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-13
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a plate heat exchanger with flow adjusting device, a water inlet pipe is arranged in a water inlet cavity in the plate heat exchanger, the water inlet pipe extends to the bottom of the water inlet cavity, a plurality of first through holes are distributed on one part of the water inlet pipe positioned in the water inlet cavity along the pipe wall and the diameter direction of the water inlet pipe, and the water inlet pipe is fixedly connected with the plate heat exchanger; the water inlet pipe is rotatably connected with a hole pipe, a second through hole corresponding to the first through hole is formed in the hole pipe, and a knob and a nut are arranged at one end of the hole pipe. The flow regulation of the plate heat exchanger can be carried out by rotating the screw cap, and a flow regulation device is not required to be additionally arranged in a pipeline of the heat exchange system, so that the heat exchange system is simpler, the additional installation cost is reduced, the potential fault points are also reduced, and the operation and maintenance cost is correspondingly reduced.

Description

Plate heat exchanger with flow adjusting device

Technical Field

The utility model relates to a plate heat exchanger with flow adjustment device.

Background

The plate heat exchanger is a common heat exchange device, the existing plate heat exchanger is formed by stacking a plurality of clapboards and sealing gaskets in sequence, and two groups of independent cavities which are mutually separated are formed after the front pressing plate and the rear pressing plate at two ends are pressed tightly, two flowing media with different temperatures are respectively arranged in the two groups of cavities, and heat exchange is carried out between the media in the two groups of cavities through the clapboards.

Sometimes flow and pressure regulation of the plate radiator is required depending on the heat exchange requirements. The existing plate heat exchanger is not provided with a flow regulating device, and the flow regulating device needs to be additionally arranged in a heat exchange system pipeline, so that the additional installation cost is increased, the hidden trouble point is also increased, and the operation and maintenance cost is also correspondingly increased.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved of the utility model is to provide a plate heat exchanger with flow adjustment device for need through the problem at the extra flow adjustment device that increases of heat exchange system pipeline when solving current plate heat exchanger flow control.

In order to solve the above problems, the utility model adopts the following technical scheme:

a water inlet pipe is arranged in a water inlet cavity of the plate heat exchanger, the water inlet pipe extends to the bottom of the water inlet cavity, a plurality of first through holes are distributed on the water inlet pipe along the pipe wall and the diameter direction of the water inlet pipe, and the water inlet pipe is fixedly connected with the plate heat exchanger; the water inlet pipe is rotatably connected with a hole pipe, and a second through hole corresponding to the first through hole is formed in the hole pipe.

Furthermore, a knob is rotatably connected to a position, corresponding to the hole pipe, of a rear pressing plate of the plate radiator, the hole pipe penetrates through a corresponding hole in the rear pressing plate, the hole pipe is rotatably connected with the rear pressing plate, a sealing ring is arranged between the hole pipe and the rear pressing plate, and the knob is fixedly connected with the hole pipe.

Furthermore, a filter screen is arranged in the hole pipe.

Furthermore, the inner wall of the hole pipe is provided with an axial groove.

Furthermore, a plurality of pairs of bulges fixedly connected with the partition plate of the plate heat exchanger are arranged on the inner side of the flow channel of the plate heat exchanger, and the tops of the bulges are in contact.

The utility model discloses an actively the effect does:

the utility model discloses be equipped with the inlet tube in the intake antrum, be equipped with first through-hole on the inlet tube, be equipped with the hole pipe in the inlet tube, be equipped with the second through-hole on the hole pipe, hole pipe one end is equipped with knob and nut, and the nut is located outside the plate heat exchanger. The flow regulation of the plate heat exchanger can be carried out by rotating the screw cap, so that a flow regulation device does not need to be additionally arranged in a pipeline of a heat exchange system, the heat exchange system is simpler, the additional installation cost is reduced, the hidden trouble points are also reduced, and the operation and maintenance cost is correspondingly reduced. The hole pipe is internally provided with a filter screen for filtering impurities in water. Radial grooves are uniformly distributed on the inner wall of the hole pipe, and the grooves 12 are used for axially communicating the second through holes, so that the available filtering area of the filter screen is increased, and the times of cleaning the filter screen are reduced. The inner side of each flow channel is provided with a plurality of pairs of bulges, and the tops of the bulges are in contact with each other, so that the deformation of the partition plate caused by water pressure is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of the inlet pipe with the screen removed;

in the figure, 1, a screw cap; 2. a gland; 3. a knob; 4. a rear pressing plate; 5. a water inlet pipe; 6. a perforated pipe; 7. a first through hole; 8. a second through hole; 9. filtering with a screen; 10. a water inlet pipe; 11. aligning the filaments; 12. a groove.

Detailed Description

The arrow direction in the figure is the direction of flow of the high temperature.

As shown in fig. 1, a plate heat exchanger with a flow adjusting device is formed by stacking a plurality of partition plates and sealing gaskets in sequence, and pressing the partition plates by a front pressing plate 10 and a rear pressing plate 4 at two ends to form two groups of mutually isolated cavities which are mutually separated, two flowing water with different temperatures are respectively arranged in the two groups of cavities, and the water in the two groups of cavities exchanges heat through the partition plates. High-temperature water enters the water inlet cavity leftwards through the water inlet in the upper part, the water in the water inlet cavity flows downwards into the water outlet cavity in the lower part of the plate heat exchanger through the flow channel between the partition plates, and flows out of the plate heat exchanger through the counter-thread 11 in the water outlet.

As shown in fig. 1 and fig. 2, a plate heat exchanger with a flow adjusting device, wherein a hot water inlet is located at the right end of the upper part, the left side of the water inlet is provided with a water inlet cavity, a horizontal water inlet pipe 5 concentric with the water inlet cavity is arranged in the water inlet cavity, the water inlet pipe 5 extends to the left end of the water inlet cavity, a part of the water inlet pipe 5 located in the water inlet cavity is uniformly provided with first through holes 7 along the circumference and the diameter direction, and the right end of the water inlet pipe 6 is fixedly connected and sealed with a front pressure plate 10 of the plate heat exchanger through threads. The water inlet pipe 5 is rotatably connected with a hole pipe 6, and a second through hole 8 corresponding to the first through hole 7 is formed in the hole pipe 6. The hole pipe 6 is rotated to change the overlapping area of the first through hole 7 and the second through hole 8, thereby changing the water flow entering the flow channel and simultaneously adjusting the pressure of hot water entering the flow channel. Therefore, a flow adjusting device does not need to be additionally arranged in a pipeline of the heat exchange system, the heat exchange system is simpler, the additional installation cost is reduced, the hidden trouble points are also reduced, and the operation and maintenance cost is correspondingly reduced.

Inlet tube 5 extends to the intake antrum bottom leftwards, make its inside water even get into the runner through first through-hole 7 and second through-hole 8, make the water distribution that gets into in the plate heat exchanger more even, make the even flow of water in the runner, therefore cold, hot water can carry out even heat exchange through each baffle, the runner of avoiding being close to water inlet and delivery port flows fast because of pressure is high, the runner of keeping away from water inlet and delivery port flows slowly because of pressure is low, and then it is fast to cause the plate heat exchanger to be close to water inlet and delivery port one side heat exchange, it is slow to keep away from water inlet and delivery port one side heat exchange, make the plate heat exchanger heat transfer inhomogeneous, influence its heat transfer.

The rear pressing plate 4 of the plate type radiator is provided with a knob 3 at a position corresponding to the hole pipe 6, and the knob 3 is composed of two sections of cylinders with a small left part and a large right part. The right portion of the knob 3 is arranged in a corresponding blind hole in the rear pressing plate 4, the knob 3 is rotatably connected with the rear pressing plate 4, a gland 2 is arranged on the left side of the rear pressing plate 4 in a position corresponding to the knob 3, the gland 2 is rotatably connected with the left portion of the knob 3, and the gland 2 is fixedly connected with the rear pressing plate 4 through screws. The hole pipe 6 penetrates through a hole corresponding to the rear pressing plate 4, the hole pipe 6 is rotatably connected with the rear pressing plate 4, a sealing ring is arranged between the hole pipe 6 and the rear pressing plate 4, the knob 3 is welded with the hole pipe 6, and the left end of the knob 3 is fixedly connected with a nut 1 through a screw. The hole pipe 6 can be rotated by rotating the screw cap 1, flow regulation of the plate heat exchanger is carried out, the regulation of flow is more convenient, and the adjustment can be carried out at any time.

Be equipped with filter screen 9 in the perforated pipe 6, filter screen 9 rolls up to the tube-shape and props tightly inside perforated pipe 6 for filter the impurity in the water.

Radial grooves 12 are uniformly distributed on the inner wall of the pore pipe 6. The grooves 12 communicate the second through holes axially, thereby increasing the available filter area of the filter screen and reducing the number of times the filter screen is cleaned.

A plurality of pairs of bulges are arranged on the inner side of each flow channel of the plate heat exchanger, the tops of the bulges are in contact with each other, and the bulges are formed by punching a partition plate. The arrangement of the protrusions reduces the deformation of the partition board caused by water pressure.

Claims

1. A plate heat exchanger with a flow adjusting device is characterized in that a water inlet pipe (5) is arranged in a water inlet cavity of the plate heat exchanger, the water inlet pipe (5) extends to the bottom of the water inlet cavity, a plurality of first through holes (7) are distributed on the water inlet pipe (5) along the pipe wall and the diameter direction of the water inlet pipe, and the water inlet pipe (5) is fixedly connected with the plate heat exchanger; the water inlet pipe (5) is rotatably connected with a hole pipe (6), and a second through hole (8) corresponding to the first through hole (7) is formed in the hole pipe (6).

2. The plate heat exchanger with the flow adjusting device according to claim 1, wherein the back pressure plate (4) of the plate heat exchanger is rotatably connected with a knob (3) at a position corresponding to the hole tube (6), the hole tube (6) penetrates through a corresponding hole in the back pressure plate (4), the hole tube (6) is rotatably connected with the back pressure plate (4), a sealing ring is arranged between the hole tube (6) and the back pressure plate (4), and the knob (3) is fixedly connected with the hole tube (6).

3. A plate heat exchanger with a flow regulating device according to claim 1, characterized in that a filter screen (9) is arranged in the port tube (6).

4. A plate heat exchanger with a flow regulating device according to claim 3, characterized in that the inner wall of the port tube (6) is provided with axial grooves (12).

5. The plate heat exchanger with the flow adjusting device according to claim 1, wherein a plurality of pairs of protrusions fixedly connected with the partition plate of the plate heat exchanger are arranged on the inner side of the flow channel of the plate heat exchanger, and the tops of the protrusions are in contact with each other.