Two-network balance self-control adjusting device for central heating

Abstract

According to the technical scheme, the two-network balance self-control adjusting device is characterized in that the two-network balance self-control adjusting device comprises a water inlet pipe, and the water inlet pipe is used for being connected with a heat supply pipeline and serves as a water inlet end; the water outlet pipe is used for being connected with a heat supply pipeline and serves as a water outlet end; the electromagnetic valve is arranged between the water inlet pipe and the water outlet pipe; the filtering assembly is positioned between the electromagnetic valve and the water inlet pipe; the filtering assembly comprises a filtering box; a connecting pipe; a standpipe; the filtering sleeve is detachably connected to the bottom of the filtering box and is coaxial with the connecting pipe, an annular filtering cavity is formed in the filtering sleeve, the top of the filtering cavity is communicated with the space between the connecting pipe and the vertical pipe, and the bottom of the filtering cavity is communicated with the vertical pipe; and a filter medium; and through the arrangement of the filter box, water before entering the electromagnetic valve can be filtered out, impurities in the water are filtered out, and therefore the situation that the impurities are accumulated at the electromagnetic valve to block the electromagnetic valve is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of centralized heating, and more specifically, to a two-network balance automatic control regulating device for centralized heating. Background Art

[0002] A district heating system is a system that uses steam or hot water generated by a centralized heat source to supply a city or part of a region with heat required for production, heating and life through a pipeline network. A district heating system mainly includes a heat source plant, a primary heat network, a heat exchanger and a secondary heat network; among them, the secondary heat network directly supplies heat to users. In the secondary heat network part of the district heating system, there are often some situations where the room temperature of some users does not meet the standard because the user flow does not reach the design flow value between various heat users and heat dissipation equipment. This situation where the user room temperature does not meet the standard is usually called hydraulic imbalance. The essential reason for hydraulic imbalance is that there are defects in the design and operation of the secondary heat network, which causes the actual heating flow to be unbalanced with the design flow when there is pressure loss in the secondary heat network.

[0003] The existing flow regulation of the heating secondary network balance is mostly regulated by valves, which adjust the flow and then adjust the temperature. However, since impurities are easily generated in the water of central heating, it is very easy to cause blockage at the valve after a long period of circulation. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a two-network balancing automatic regulating device for centralized heating, which can filter the water before entering the solenoid valve through the setting of a filter box, filter out impurities in the water, thereby preventing impurities from accumulating at the solenoid valve and causing blockage of the solenoid valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-network balance automatic control regulating device for centralized heating, comprising a water inlet pipe, the water inlet pipe is used to connect with the heating pipeline and serve as a water inlet end;

[0006] A water outlet pipe, which is used to be connected to a heating pipeline and serves as a water outlet;

[0007] A solenoid valve, wherein the solenoid valve is arranged between the water inlet pipe and the water outlet pipe;

[0008] and a filter assembly, wherein the filter assembly is located between the solenoid valve and the water inlet pipe;

[0009] The filter assembly comprises a filter box, the filter box comprises a top plate and a bottom plate arranged horizontally, a water inlet pipe is fixedly connected to the top of the top plate, a water outlet pipe is connected to one side of the filter box, a water inlet hole with a vertical axis is arranged on the top plate, and the water inlet hole is connected to the water inlet pipe;

[0010] A connecting pipe, the connecting pipe is fixedly connected to the bottom plate of the filter box and vertically passes through the bottom of the filter box, the connecting pipe is coaxial with the water inlet hole;

[0011] A vertical pipe, wherein the vertical pipe is coaxially arranged with the connecting pipe, one end of the top of the vertical pipe is pressed against the bottom of the top plate and is connected with the water inlet hole, the bottom of the vertical pipe passes downward through the connecting pipe and the outer diameter of the vertical pipe is smaller than the inner diameter of the connecting pipe;

[0012] A filter sleeve, which is detachably connected to the bottom of the filter box and is coaxial with the connecting pipe. An annular filter chamber is provided in the filter sleeve, the top of the filter chamber is connected to the space between the connecting pipe and the vertical pipe, and the bottom of the filter chamber is connected to the vertical pipe;

[0013] and a filter medium filled in the filter cavity of the filter sleeve.

[0014] The utility model is further configured as follows: it also includes a fixed tube, the fixed tube sleeve is arranged outside the vertical tube, the top of the fixed tube is flush with the top of the connecting tube, the inner wall of the fixed tube is fitted with the outer wall of the vertical tube, the outer diameter of the fixed tube is smaller than the inner diameter of the connecting tube, and the height of one end of the bottom of the fixed tube is lower than the height of one end of the bottom of the vertical tube.

[0015] The utility model is further configured as follows: a water hole is provided on the vertical pipe near the bottom, and a connecting hole is provided on the side wall of the fixed pipe. When one end of the top of the vertical pipe is pressed against the bottom of the top plate, the water hole is aligned with the connecting hole.

[0016] A connecting hole communicating with the filter cavity is provided on the filter sleeve. When the filter sleeve is fixed at the bottom of the filter box, the connecting pipe is aligned with the communicating hole.

[0017] The utility model is further configured as follows: the filter sleeve comprises an inner sleeve, the inner sleeve is arranged outside the fixed tube, and the inner wall of the inner sleeve is in contact with the outer wall of the fixed tube;

[0018] an outer sleeve, the outer sleeve being arranged around the inner sleeve;

[0019] A connecting ring, which is fixedly connected to the top of the outer sleeve, has a height higher than the top of the inner sleeve, is sleeved on the outside of one end of the bottom of the connecting pipe and is threadedly connected to the connecting pipe;

[0020] and a bottom ring, the bottom ring being fixedly connected to the bottom of the inner sleeve and the outer sleeve;

[0021] The filter medium is arranged in the filter cavity in an annular shape, and the inner side and the outer side of the filter medium are in contact with the inner sleeve and the outer sleeve respectively.

[0022] The utility model is further configured as follows: a sealing ring is fixedly connected to the outer side of the top of the vertical pipe, and a first sealing ring is fixedly connected to the top of the sealing ring. When the vertical pipe is pressed upward against the bottom of the top plate, the sealing ring surrounds the water inlet hole and the first sealing ring is pressed against the bottom of the top plate.

[0023] The utility model is further configured as follows: a second sealing ring is fixedly connected to the bottom of the sealing ring, the vertical pipe can slide up and down in the fixed pipe, and the vertical pipe can be pressed against the top of the fixed pipe and the connecting pipe through the sealing ring when sliding downward.

[0024] The utility model is further configured as follows: the bottom of the vertical tube is sealed, one end of the bottom of the fixed tube is rotatably connected to a rotating block that rotates around the axis of the fixed tube, the bottom of the vertical tube is fixedly connected to a vertical rod coaxial with the vertical tube, the vertical rod vertically penetrates the rotating block and is threadedly connected to the rotating block.

[0025] The utility model is further configured as follows: a guide rod arranged along the radial direction of the vertical pipe is fixedly connected to the bottom of the vertical pipe, guide grooves vertical in the length direction are opened on both sides of the inner wall of the fixed pipe, two ends of the guide rod are respectively inserted into the two guide grooves, and the top height of the guide groove is lower than the bottom height of the connecting hole.

[0026] In summary, compared with the prior art, the utility model has the following beneficial effects: the utility model can filter the water before entering the solenoid valve through the setting of the filter box, filter out impurities in the water, thereby preventing the impurities from accumulating at the solenoid valve and causing blockage of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0028] Figure 2 A schematic diagram of a fixing rod is shown in the embodiment;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0030] Figure 4 for Figure 2 An enlarged schematic diagram of part B;

[0031] Figure 5 is a cross-sectional view of the overall structure of the embodiment;

[0032] Figure 6 for Figure 5 An enlarged schematic diagram of the C portion;

[0033] Figure 7 for Figure 5 An enlarged schematic diagram of the D portion;

[0034] Figure 8 Schematic diagram of a guide groove according to an embodiment.

[0035] In the figure: 1, filter box; 11, top plate; 111, water inlet hole; 12, bottom plate; 2, water inlet pipe; 3, water outlet pipe; 4, solenoid valve; 5, filter assembly; 51, filter sleeve; 511, outer sleeve; 512, inner sleeve; 5121, connecting hole; 513, connecting ring; 514, bottom ring; 52, connecting pipe; 53, fixed pipe; 531, fixed rod; 532, connecting hole; 533, guide groove; 54, vertical pipe; 541, sealing ring; 542, first sealing ring; 543, second sealing ring; 544, water through hole; 545, guide rod; 55, rotating block; 56, vertical rod. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0037] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0038] Embodiment: A two-network balance automatic control device for central heating, see attached Figure 1 -Attached Figure 8 , including an inlet pipe 2, an outlet pipe 3, a solenoid valve 4 and a filter assembly 5. The inlet pipe 2 is used to connect with the heating pipeline and serve as the water inlet end, the outlet pipe 3 is used to connect with the heating pipeline and serve as the water outlet end, the solenoid valve 4 is arranged between the inlet pipe 2 and the outlet pipe 3, and the filter assembly 5 is located between the solenoid valve 4 and the inlet pipe 2. The regulating device is mostly arranged on the return water pipeline, and the water on the return water pipeline enters the inlet pipe 2, then enters the outlet pipe 3 after passing through the filter assembly 5 and the solenoid valve 4, and then enters the return water pipeline again through the outlet pipe 3.

[0039] The water is filtered through the filter assembly 5 to filter out impurities in the water, thereby reducing the accumulation of impurities at the solenoid valve 4 and preventing the solenoid valve 4 from being blocked by the impurities.

[0040] Specifically, the filter assembly 5 includes a filter box 1, a connecting pipe 52, a vertical pipe 54, a filter sleeve 51 and a filter medium. The filter box 1 includes a horizontally arranged top plate 11 and a bottom plate 12. The water inlet pipe 2 is fixedly connected to the top of the top plate 11. The water outlet pipe 3 is located on one side of the filter box 1. The solenoid valve 4 is connected between the water outlet pipe 3 and the filter box 1. A water inlet hole 111 with a vertical axis is provided on the top plate 11. The water inlet hole 111 is connected to the water inlet pipe 2; the connecting pipe 52 is fixedly connected to the bottom plate 12 of the filter box 1 and vertically passes through the bottom of the filter box 1. The connecting pipe 52, the connecting pipe 52 Coaxial with the water inlet hole 111; the vertical pipe 54 is coaxially arranged with the connecting pipe 52, one end of the top of the vertical pipe 54 is pressed against the bottom of the top plate 11 and is connected with the water inlet hole 111, the bottom of the vertical pipe 54 passes downward through the connecting pipe 52 and the outer diameter of the vertical pipe 54 is smaller than the inner diameter of the connecting pipe 52; the filter sleeve 51 is detachably connected to the bottom of the filter box 1 and is coaxial with the connecting pipe 52, an annular filter chamber is arranged in the filter sleeve 51, the top of the filter chamber is connected with the space between the connecting pipe 52 and the vertical pipe 54, and the bottom of the filter chamber is connected with the vertical pipe 54; the filter medium is filled in the filter chamber of the filter sleeve 51.

[0041] The water on the return water line enters the water inlet pipe 2, and then the water in the water inlet pipe 2 enters the vertical pipe 54 through the water inlet hole 111 and enters the filter cavity of the filter sleeve 51 near the bottom from the bottom of the vertical pipe 54, and then the water in the filter sleeve 51 flows upward in the filter cavity in the filter sleeve 51, enters the filter box 1 through the cavity between the connecting pipe 52 and the vertical pipe 54, and then enters the solenoid valve 4 through the filter box 1, and finally is sent to the return water line again through the outlet pipe 3.

[0042] Specifically, the present embodiment further includes a fixed tube 53, which is sleeved outside the vertical tube 54, the top of the fixed tube 53 is flush with the top of the connecting tube 52, the inner wall of the fixed tube 53 is in contact with the outer wall of the vertical tube 54, the outer diameter of the fixed tube 53 is smaller than the inner diameter of the connecting tube 52, and the height of the bottom end of the fixed tube 53 is lower than the height of the bottom end of the vertical tube 54.

[0043] Specifically, a water hole 544 is provided on the vertical pipe 54 near the bottom, and a connecting hole 532 is provided on the side wall of the fixed pipe 53. When the top end of the vertical pipe 54 is pressed against the bottom of the top plate 11, the water hole 544 is aligned with the connecting hole 532. A connecting hole 5121 connected to the filter chamber is provided on the filter sleeve 51. When the filter sleeve 51 is fixed to the bottom of the filter box 1, the connecting pipe 52 is aligned with the connecting hole 532.

[0044] Specifically, the filter sleeve 51 includes an inner sleeve 512, an outer sleeve 511, a connecting ring 513 and a bottom ring 514. The inner sleeve 512 is sleeved on the outside of the fixed tube 53, and the inner wall of the inner sleeve 512 is in contact with the outer wall of the fixed tube 53; it is arranged around the inner sleeve 512; the connecting ring 513 is fixedly connected to the top of the outer sleeve 511, and the height of the connecting ring 513 is higher than the height of the top of the inner sleeve 512. The connecting ring 513 is sleeved on the outside of one end of the bottom of the connecting tube 52 and is threadedly connected to the connecting tube 52; the bottom ring 514 is fixedly connected to the bottom of the inner sleeve 512 and the outer sleeve 511; the filter medium is arranged in a ring shape in the filter cavity, and the inner and outer sides of the filter medium are in contact with the inner sleeve 512 and the outer sleeve 511 respectively.

[0045] Specifically, a sealing ring 541 is fixedly connected to the outer side of the top of the vertical pipe 54, and a first sealing ring 542 is fixedly connected to the top of the sealing ring 541. When the vertical pipe 54 is pressed upward against the bottom of the top plate 11, the sealing ring 541 surrounds the water inlet hole 111 and the first sealing ring 542 is pressed against the bottom of the top plate 11; a second sealing ring 543 is fixedly connected to the bottom of the sealing ring 541, and the vertical pipe 54 can slide up and down in the fixed pipe 53. When the vertical pipe 54 slides downward, it can be pressed against the top of the fixed pipe 53 and the connecting pipe 52 through the sealing ring 541.

[0046] When the filter assembly 5 is used normally to filter water, the vertical pipe 54 is pushed upward in the fixed pipe 53, so that the vertical pipe 54 pushes the first sealing ring 542 on the sealing ring 541 to press against the bottom of the top plate 11, and at this time, the water-through hole 544, the connecting hole 532 and the connecting hole 5121 are aligned, so that after water enters the vertical pipe 54, it can pass through the water-through hole 544, the connecting hole 532 and the connecting hole 5121 from the bottom of the vertical pipe 54 in sequence and enter the filter cavity, then pass through the filter medium upward, and then enter the filter box 1 upward through the cavity between the fixed pipe 53 and the connecting pipe 52. After a period of use, when the filter medium in the filter sleeve 51 needs to be cleaned or replaced, the vertical pipe 54 is pulled downward, so that the vertical pipe 54 drives the sealing ring 541 to press the second sealing ring 543 against the top of the connecting pipe 52 and the fixed pipe 53, and at this time, the water-through hole 544 and the connecting hole 532 are staggered. At this time, the water in the water inlet pipe 2 cannot enter the filter sleeve 51 through the vertical pipe 54, and the water in the filter sleeve 51 cannot enter the filter box 1 through the cavity between the connecting pipe 52 and the fixed pipe 53. Therefore, the water inlet and outlet of the filter sleeve 51 are blocked, so that it is convenient to disassemble the filter sleeve 51 to clean or replace the filter medium.

[0047] Specifically, the filter sleeve 51 is threadedly connected to the outside of the connecting pipe 52, so that the filter sleeves 51 can be easily disassembled and installed.

[0048] Specifically, the bottom of the vertical tube 54 is sealed, and one end of the bottom of the fixed tube 53 is rotatably connected to a rotating block 55 that rotates around the axis of the fixed tube 53. The bottom of the vertical tube 54 is fixedly connected to a vertical rod 56 that is coaxial with the vertical tube 54. The vertical rod 56 vertically penetrates the rotating block 55 and is threadedly connected to the rotating block 55.

[0049] By configuring the vertical rod 56 and the rotating block 55, when it is necessary to drive the vertical tube 54 to slide up and down in the fixed tube 53, it is only necessary to rotate the rotating block 55. The threaded matching relationship between the rotating block 55 and the vertical rod 56 can drive the vertical rod 56 to slide up and down, thereby driving the vertical tube 54 to slide up and down.

[0050] The bottom of the vertical tube 54 is fixedly connected with a guide rod 545 arranged along the radial direction of the vertical tube 54. The inner wall of the fixed tube 53 is provided with vertical guide grooves 533 in the length direction on both sides. The two ends of the guide rod 545 are respectively inserted into the two guide grooves 533. The top height of the guide groove 533 is lower than the bottom height of the connecting hole 532.

[0051] By setting the guide rod 545 and the guide groove 533, when the rotating block 55 rotates, it will not drive the vertical rod 56 and the vertical tube 54 to rotate together, so that the rotating block 55 can smoothly drive the vertical tube 54 to move up and down.

[0052] Specifically, a plurality of fixing rods 531 are fixedly connected to the outside of the fixing tube 53 . The fixing rods 531 are arranged along the radial direction of the fixing tube 53 and one end of the fixing rods 531 away from the fixing tube 53 is fixedly connected to the inner wall of the connecting tube 52 to fix the position of the fixing tube 53 .

[0053] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A two-network balance automatic control device for central heating, Features: It comprises a water inlet pipe (2), wherein the water inlet pipe (2) is used to be connected to a heating pipeline and serves as a water inlet end; A water outlet pipe (3), the water outlet pipe (3) being used to be connected to a heating pipeline and serving as a water outlet end; A solenoid valve (4), wherein the solenoid valve (4) is arranged between the water inlet pipe (2) and the water outlet pipe (3); and a filter assembly (5), wherein the filter assembly (5) is located between the solenoid valve (4) and the water inlet pipe (2); The filter assembly (5) comprises a filter box (1), the filter box (1) comprises a top plate (11) and a bottom plate (12) arranged horizontally, the water inlet pipe (2) is fixedly connected to the top of the top plate (11), the water outlet pipe (3) is connected to one side of the filter box (1), and a water inlet hole (111) with a vertical axis is arranged on the top plate (11), and the water inlet hole (111) is connected to the water inlet pipe (2); A connecting pipe (52), the connecting pipe (52) being fixedly connected to the bottom plate (12) of the filter box (1) and vertically penetrating the bottom of the filter box (1), the connecting pipe (52) being coaxial with the water inlet hole (111); A vertical pipe (54), the vertical pipe (54) and the connecting pipe (52) are coaxially arranged, one end of the top of the vertical pipe (54) is pressed against the bottom of the top plate (11) and is connected to the water inlet hole (111), the bottom of the vertical pipe (54) passes downward through the connecting pipe (52), and the outer diameter of the vertical pipe (54) is smaller than the inner diameter of the connecting pipe (52); A filter sleeve (51), the filter sleeve (51) being detachably connected to the bottom of the filter box (1) and being coaxial with the connecting pipe (52), an annular filter chamber being arranged in the filter sleeve (51), the top of the filter chamber being in communication with the space between the connecting pipe (52) and the vertical pipe (54), and the bottom of the filter chamber being in communication with the vertical pipe (54); and a filter medium, wherein the filter medium is filled in the filter cavity of the filter sleeve (51).

2. A secondary network balance automatic regulating device for central heating according to claim 1, Features: The device also comprises a fixed tube (53), which is sleeved outside the vertical tube (54), the top of the fixed tube (53) is flush with the top of the connecting tube (52), the inner wall of the fixed tube (53) is in contact with the outer wall of the vertical tube (54), the outer diameter of the fixed tube (53) is smaller than the inner diameter of the connecting tube (52), and the height of one end of the bottom of the fixed tube (53) is lower than the height of one end of the bottom of the vertical tube (54).

3. A two-network balance automatic control regulating device for central heating according to claim 2, Features: A water hole (544) is provided on the vertical tube (54) near the bottom thereof, and a communication hole (532) is provided on the side wall of the fixed tube (53). When the top end of the vertical tube (54) is pressed against the bottom of the top plate (11), the water hole (544) is aligned with the communication hole (532); The filter sleeve (51) is provided with a connecting hole (5121) communicating with the filter cavity. When the filter sleeve (51) is fixed to the bottom of the filter box (1), the connecting pipe (52) is aligned with the communicating hole (532).

4. A two-network balance automatic control regulating device for central heating according to claim 3, Features: The filter sleeve (51) comprises an inner sleeve (512), wherein the inner sleeve (512) is sleeved outside the fixed tube (53), and the inner wall of the inner sleeve (512) is in contact with the outer wall of the fixed tube (53); An outer sleeve (511) is arranged around the inner sleeve (512); A connecting ring (513), wherein the connecting ring (513) is fixedly connected to the top of the outer sleeve (511), the height of the connecting ring (513) is higher than the height of the top of the inner sleeve (512), the connecting ring (513) is sleeved on the outside of one end of the bottom of the connecting pipe (52) and is threadedly connected to the connecting pipe (52); and a bottom ring (514), wherein the bottom ring (514) is fixedly connected to the bottoms of the inner sleeve (512) and the outer sleeve (511); The filter medium is arranged in an annular shape in the filter cavity, and the inner side and the outer side of the filter medium are in contact with the inner sleeve (512) and the outer sleeve (511) respectively.

5. A two-network balance automatic control regulating device for central heating according to claim 4, Features: A sealing ring (541) is fixedly connected to the outer side of the top of the vertical pipe (54), and a first sealing ring (542) is fixedly connected to the top of the sealing ring (541); when the vertical pipe (54) is pressed upward against the bottom of the top plate (11), the sealing ring (541) surrounds the water inlet hole (111) and the first sealing ring (542) is pressed against the bottom of the top plate (11).

6. A two-network balance automatic control regulating device for central heating according to claim 5, Features: A second sealing ring (543) is fixedly connected to the bottom of the sealing ring (541); the vertical tube (54) can slide up and down in the fixed tube (53); and the vertical tube (54) can be pressed against the top of the fixed tube (53) and the connecting tube (52) by the sealing ring (541) when sliding downward.

7. A two-network balance automatic regulating device for central heating according to claim 6, Features: The bottom of the vertical tube (54) is sealed, one end of the bottom of the fixed tube (53) is rotatably connected to a rotating block (55) that rotates around the axis of the fixed tube (53), the bottom of the vertical tube (54) is fixedly connected to a vertical rod (56) coaxial with the vertical tube (54), the vertical rod (56) vertically penetrates the rotating block (55) and is threadedly connected to the rotating block (55).

8. A secondary network balance automatic regulating device for central heating according to claim 7, Features: The bottom of the vertical tube (54) is fixedly connected to a guide rod (545) arranged in the radial direction of the vertical tube (54); guide grooves (533) vertical in the length direction are provided on both sides of the inner wall of the fixed tube (53); the two ends of the guide rod (545) are respectively inserted into the two guide grooves (533); the top height of the guide groove (533) is lower than the bottom height of the connecting hole (532).

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