Central heating circulating water blowdown device

Abstract

The utility model discloses a central heating circulating water blowdown device which comprises a water inlet pipe, an electric filter cartridge, a water distribution tank, a filtered water guide layer, a water tank, a water outlet pipe, a water replenishing pipe and an emptying pipe, the electric filter cartridge is low in left and high in right, the left side of the electric filter cartridge is open, a scraper blade is arranged at the left opening in a matched mode, a chip removal groove is formed below the scraper blade, an outlet of the water inlet pipe extends into the electric filter cartridge, a lining is further arranged in the electric filter cartridge, and water filtering holes are correspondingly formed in the lining and the electric filter cartridge; the water distribution tank is arranged below the outer side of the electric filter cartridge, the water tank is located below the water distribution tank, and the filtered water guide layer is located between the water tank and the water distribution tank; the water outlet pipe, the water replenishing pipe and the emptying pipe are communicated with the water tank; the circulating water filter can be connected in parallel outside a circulating water pipeline and is suitable for cleaning the circulating water pipeline before heat supply, the circulating water is filtered and discharged by using the electric filter cartridge, rust slag in the circulating water can be effectively discharged, most of small-particle-size impurities can be intercepted by the filtered water guide layer, and the cleanness of the circulating water is further ensured.

Description

Technical Field

[0001] The utility model relates to the field of centralized heating circulating water treatment equipment, in particular to a centralized heating circulating water sewage discharge device. Background Art

[0002] At present, centralized heating is generally used for winter heating in cities and towns. The heat energy sent by the heating company or the cogeneration unit is used for heating residents after heat exchange at the heat exchange station. The centralized heating method has the advantages of saving energy and reducing pollution. Combined with the actual operation and maintenance experience, it can be seen that the circulating water pipelines of the heat exchange station and the heat source unit need to be inspected and maintained in summer. The circulating water needs to be discharged during the inspection and maintenance. After the circulating water is discharged, the inner wall of the pipeline will inevitably come into contact with the air for oxidation, and the rust residue formed by oxidation corrosion is difficult to clean. At the beginning of winter heating every year, the indoor pipelines of residents and the pipelines of the heat source unit will be affected by the rust residue, which not only reduces the heat exchange efficiency, but also easily damages the pipelines and water pumps and other facilities, bringing adverse effects to the centralized heating. Therefore, a centralized heating circulating water sewage discharge device that can remove rust residue is needed. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the utility model is to provide a centralized heating circulating water sewage discharge device, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A centralized heating circulating water sewage discharge device, comprising a water inlet pipe, an electric filter cartridge, a water distribution trough, a water filter guide layer, a pool, a water outlet pipe, a water supply pipe and an emptying pipe; the electric filter cartridge is lower on the left and higher on the right and is open on the left side, a scraper is provided at the left opening, a chip discharge trough is provided below the scraper, the outlet of the water inlet pipe extends into the electric filter cartridge, an inner liner is also provided in the electric filter cartridge, and water filter holes are correspondingly provided on the inner liner and the electric filter cartridge; the water distribution trough is provided below the outer side of the electric filter cartridge, a plurality of leakage holes are evenly distributed on the water distribution trough, the pool is located below the water distribution trough, and the water filter guide layer is located in the pool and the water distribution trough, the water filtering guide layer includes a plurality of slots evenly distributed along the front-to-back direction, there are gaps between adjacent slots, a water filter sheet is detachably inserted in the slot, the water filter sheet is not vertically arranged, and is inclined forward or backward, so that the water flow sent out of the water distribution trough can be completely received by the water filter sheet, and the water flow is prevented from directly dripping into the pool through the gaps between adjacent slots, the water filter sheet includes a plate frame matched with the slot and filter cotton arranged in the plate frame, and the plate frame is also provided with a limiting clip matched with the front and rear sides of the filter cotton; the water outlet pipe, the water supply pipe and the drain pipe are all connected to the pool.

[0006] Furthermore, the electric filter cartridge is installed on a frame, and the frame is provided with a driving motor, a bearing seat matching with the right side of the electric filter cartridge, and a roller frame matching with the left side of the electric filter cartridge. A rack ring is also coaxially arranged on the outside of the electric filter cartridge, and a driving gear matching with the rack ring is coaxially arranged on the output shaft of the driving motor.

[0007] Furthermore, a shaft sleeve is provided on the right side of the electric filter cartridge, a fixed shaft matching with the shaft sleeve is provided on the inner liner, a plurality of fixed shaft tightening bolts are provided on the shaft sleeve, and a protrusion is provided on the right side of the fixed shaft.

[0008] Furthermore, the material of the lining is polytetrafluoroethylene, and a conical guide block is also provided on the lining, and the conical guide block is located on the right side of the lining.

[0009] Furthermore, a scraper chip conveyor is provided in the chip removal groove.

[0010] Furthermore, the distance between the water distribution trough and the outer peripheral surface of the electric filter cartridge is no more than 30 cm.

[0011] Furthermore, the distance between the upper edge of the water filtering guide layer and the outer peripheral surface of the water distribution trough is no more than 10 cm, and the lower edge of the water filtering guide layer extends below the liquid level of the pool.

[0012] The utility model has the following beneficial technical effects:

[0013] The utility model can be constructed in parallel outside the circulating water pipeline, and is suitable for cleaning the circulating water pipeline on the eve of heating. The electric filter cartridge is used to filter and discharge the circulating water. The rust residue mixed in the circulating water can be effectively removed, and most of the small-size impurities and dust will be retained by the water filter guide layer, further ensuring the cleanliness of the circulating water. In addition, the application of the water filter guide layer also significantly reduces the noise in the water treatment process, and is suitable for construction and operation in residential heat exchange stations and heat source unit plants. The application is novel in design, stable and reliable in operation, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a right view of the assembly structure of the water filtering and guiding layer in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] like Figure 1 and Figure 2 As shown, a centralized heating circulating water sewage discharge device described in this embodiment includes a water inlet pipe 1, an electric filter cartridge 2, a water distribution trough 3, a water filter guide layer 4, a water pool 5, a water outlet pipe 6, a water supply pipe 7 and an emptying pipe 8; the electric filter cartridge 2 is lower on the left and higher on the right and is open on the left side. The slope of the electric filter cartridge 2 is preferably not more than 15°, and a scraper 9 is provided at the left opening. The scraper 9 extends into the electric filter cartridge 2, and a chip removal groove 10 is provided below the scraper 9, and a scraper chip removal machine is provided in the chip removal groove 10; the electric The specific assembly structure of the filter cartridge 2 is as follows: the electric filter cartridge 2 is mounted on a frame 11, on which a driving motor 12, a bearing seat 13 matched with the right side of the electric filter cartridge 2, and a roller frame 14 matched with the left side of the electric filter cartridge 2 are arranged. A rack ring 15 is also coaxially arranged on the outer side of the electric filter cartridge 2, and a driving gear 16 matched with the rack ring 15 is coaxially arranged on the output shaft of the driving motor 12, and the electric filter cartridge 2 is driven to rotate by the driving motor 12; the scraper 9 is also mounted on the frame 11;

[0019] The outlet of the water inlet pipe 1 extends into the electric filter cartridge 2 through the left opening of the electric filter cartridge 2. The electric filter cartridge 2 is also provided with an inner liner 17. The material of the inner liner 17 is polytetrafluoroethylene. The surface energy of polytetrafluoroethylene is low and the friction coefficient is small, which is conducive to the movement of water flow and rust residue. The inner liner 17 is also provided with a conical guide block 18. The conical guide block 18 is located on the right side of the inner liner 17. When the water pressure at the outlet of the water inlet pipe 1 is large, the impact force of the water flow can be dispersed. The inner liner 17 and the electric filter cartridge 2 are correspondingly provided with water filter holes 19. Preferably, the inner liner 17 can be coaxially rotated and adjusted relative to the electric filter cartridge 2. Specifically, the electric filter A shaft sleeve 20 is provided on the right side of the cylinder 2, a fixed shaft 21 matched with the shaft sleeve 20 is provided on the inner liner 17, a plurality of fixed shaft fastening bolts 22 are provided on the shaft sleeve 20, a protrusion 23 is provided on the right side of the fixed shaft 21, and the setting of the protrusion 23 is convenient for applying force to drive the fixed shaft 21 and the inner liner 17 to rotate during adjustment, and after rotating into place, the position of the inner liner 17 is fastened and fixed by a plurality of fixed shaft fastening bolts 22, and the overlapping area of ​​the water filter hole 19 on the inner liner 17 and the water filter hole 19 on the electric filter cartridge 2 can be controlled by rotating and adjusting the inner liner 17, thereby controlling the different filtering fineness of the rust residue;

[0020] The water distribution trough 3 is arranged at the lower part of the outer side of the electric filter cartridge 2. The water distribution trough 3 is a hollow longitudinally cut semi-circular barrel shape. A plurality of leakage holes 24 are evenly distributed on the water distribution trough 3. The pool 5 is located below the water distribution trough 3. The water filter guide layer 4 is located between the pool 5 and the water distribution trough 3. The water filter guide layer 4 includes a plurality of slots 25 evenly distributed along the front and rear directions. There is a gap 26 between adjacent slots 25. A water filter sheet is detachably inserted in the slot 25. Specifically, the water filter sheet is inserted and pulled out through the right side of the slot 25. The water filter sheet is not vertically arranged, but tilted forward or backward, so that the water flow sent out of the water distribution trough 3 can be All of them are received by the water filter to prevent water from dripping directly into the pool 5 through the gaps 26 between adjacent slots 25. The water filter includes a plate frame 27 that matches the slots 25 and filter cotton 28 arranged in the plate frame 27. The plate frame 27 is also provided with a limiting clip 29 that matches the front and rear sides of the filter cotton 28; the water outlet pipe 6, the water supply pipe 7 and the emptying pipe 8 are all connected to the pool 5. The water outlet pipe 6, the water supply pipe 7 and the emptying pipe 8 are all provided with valves. The water outlet pipe 6 is used to deliver water to the circulating water pipeline, the water supply pipe 7 is used to replenish softened fresh water, and the emptying pipe 8 is used to empty the pool 5.

[0021] The distance between the water distribution trough 3 and the outer circumference of the electric filter cartridge 2 is not greater than 30 cm to avoid the impact of a large water flow drop on the water distribution trough 3 and excessive noise; the distance between the upper edge of the water filtration guide layer 4 and the outer circumference of the water distribution trough 3 is not greater than 10 cm to avoid the impact of a large water flow drop on the water filtration guide layer 4 and excessive noise. The lower edge of the water filtration guide layer 4 extends below the liquid level of the pool, so that the water flow can directly flow into the pool 5 along the water filter sheet without impacting the liquid level of the pool 5, thereby avoiding noise.

[0022] The working principle of this embodiment is:

[0023] The circulating water in the circulating water pipeline enters the electric filter cartridge 2 through the water inlet pipe 1. The electric filter cartridge 2 rotates, and the rust residue in the water flow is intercepted and gradually moves to the left side of the electric filter cartridge 2 until it enters the chip removal groove 10 and is taken away. The water flows through the electric filter cartridge 2 and enters the water distribution groove 3. The water distribution groove 3 evenly distributes the water flow to the top surface of the water filter guide layer 4. The water flows downward and contacts the filter cotton 28. Most of the small-sized dust impurities mixed in the water flow are intercepted. The water flows through the water filter guide layer 4 and then flows into the water pool 5, and then is discharged back to the circulating water pipeline through the water outlet pipe 6. This embodiment can be constructed in parallel outside the circulating water pipeline. Compared with the prior art, this embodiment is suitable for cleaning the circulating water pipeline on the eve of heating. The electric filter cartridge 2 is used to filter and remove slag from the circulating water. The rust residue mixed in the circulating water can be effectively removed, ensuring the cleanliness of the circulating water. In addition, the application of the water filter guide layer 4 also significantly reduces the noise in the water treatment process, which is suitable for construction and operation in the heat exchange station of the community and the factory building of the heat source unit.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A centralized heating circulating water sewage discharge device, characterized in that: It includes a water inlet pipe, an electric filter cartridge, a water distribution trough, a water filter guide layer, a pool, a water outlet pipe, a water supply pipe and an emptying pipe; the electric filter cartridge is lower on the left and higher on the right and has an opening on the left side, a scraper is arranged at the opening on the left side, and a chip removal groove is arranged below the scraper. The outlet of the water inlet pipe extends into the electric filter cartridge, and a liner is also arranged in the electric filter cartridge, and water filter holes are correspondingly opened on the liner and the electric filter cartridge; the water distribution trough is arranged below the outer side of the electric filter cartridge, and a plurality of leakage holes are evenly distributed on the water distribution trough, the pool is located below the water distribution trough, and the water filter guide layer is located between the pool and the water distribution trough, the water filter guide layer includes a plurality of slots evenly distributed in the front and rear directions, and there are gaps between adjacent slots, and a water filter sheet is detachably inserted in the slot, and the water filter sheet includes a plate frame matched with the slot and a filter cotton arranged in the plate frame, and the plate frame is also provided with a limit clip matched with the front and rear sides of the filter cotton; the water outlet pipe, the water supply pipe and the emptying pipe are all connected with the pool.

2. A centralized heating circulating water sewage discharge device according to claim 1, characterized in that: The electric filter cartridge is installed on a frame, on which a driving motor, a bearing seat matching the right side of the electric filter cartridge, and a roller frame matching the left side of the electric filter cartridge are provided. A rack ring is also coaxially provided on the outer side of the electric filter cartridge, and a driving gear matching the rack ring is coaxially provided on the output shaft of the driving motor.

3. A centralized heating circulating water sewage discharge device according to claim 1 or 2, characterized in that: A shaft sleeve is arranged on the right side of the electric filter cartridge, a fixed shaft matched with the shaft sleeve is arranged on the inner liner, a plurality of fixed shaft fastening bolts are arranged on the shaft sleeve, and a protrusion is arranged on the right side of the fixed shaft.

4. A centralized heating circulating water sewage discharge device according to claim 3, characterized in that: The material of the lining is polytetrafluoroethylene.

5. A centralized heating circulating water sewage discharge device according to claim 1, characterized in that: A scraper chip conveyor is arranged in the chip removal groove.

6. A centralized heating circulating water sewage discharge device according to claim 1, characterized in that: The distance between the water distribution trough and the outer peripheral surface of the electric filter cartridge is no more than 30 cm.

7. A centralized heating circulating water sewage discharge device according to claim 6, characterized in that: The distance between the upper edge of the water filtering guide layer and the outer peripheral surface of the water distribution trough is no more than 10 cm, and the lower edge of the water filtering guide layer extends below the liquid level of the pool.

Images