Coupling tank

Abstract

The invention discloses a coupling tank which comprises a tank body, a first water inlet, a second water inlet, a first water outlet and a second water outlet are formed in the tank body, the first water inlet and the second water inlet are oppositely arranged, the first water outlet and the second water outlet are oppositely arranged, a first filter screen is arranged at the first water inlet, and a second filter screen is arranged at the second water outlet. And a second filter screen is arranged at the second water inlet. According to the coupling tank provided by the invention, through the conical first filter screen and the conical second filter screen, the effect of flow equalization is realized while filtration is performed, so that high-temperature water and low-temperature water are completely mixed in the pipe body and then enter internal circulation of a primary system and an internal circulation of a secondary system respectively.

Description

Technical Field

[0001] The invention belongs to the technical field of coupling tanks, and in particular relates to a coupling tank. Background Art

[0002] In household heating systems, the built-in circulating water pump of the gas wall-mounted boiler has low power and low head. When the heating area is small, the built-in water pump can meet the system flow and head requirements. When the heating area is large, the water demand is large, the pipeline system is long, the resistance is large, and the built-in water pump cannot form a good water circulation, which will cause poor local heating effect and poor effect when all floor heating is turned on. In order to solve this problem, some engineers add a high-power circulating pump outside the wall-mounted boiler to increase the flow and head, but due to the limitations of the wall-mounted boiler production process and standard pipelines, the expected effect is often not achieved.

[0003] The coupling tank passes through a cavity area with almost zero pressure loss, so that the water systems on the primary circulation side and the secondary circulation side can circulate separately, so that heat is transferred losslessly, and the primary and secondary water circulation flows do not interfere with each other. The primary circulation water volume will not be affected by the dynamic changes in terminal use. By ensuring the primary side water volume, the equipment will operate stably, avoiding frequent equipment start-up and stop, heat accumulation and other phenomena caused by insufficient circulating water volume.

[0004] The four-port coupling tank in the related technology realizes the isolation of the primary and secondary systems, but the high-temperature water and the low-temperature water are not completely mixed when the flow difference on both sides is large. When the water flow on the primary side is greater than that on the secondary side, some of the high-temperature water will directly enter the terminal system and return to the heating equipment; when the secondary side flow is greater than the primary side flow, some of the high-temperature water will directly enter the terminal water supply and be mixed in the main line of the system. Summary of the invention

[0005] The purpose of the present invention is to provide a coupling tank to solve the problem in the prior art that high-temperature water and low-temperature water are not completely mixed when the flow difference between the two sides is large.

[0006] To this end, the present invention provides a coupling tank, comprising:

[0007] A tank body, wherein a first water inlet, a second water inlet, a first water outlet and a second water outlet are arranged on the tank body, the first water inlet is arranged opposite to the second water inlet, the first water outlet is arranged opposite to the second water outlet, a first filter is arranged at the first water inlet, and a second filter is arranged at the second water inlet.

[0008] The first water inlet and the first water outlet are connected to the secondary circulation system, and the second water inlet and the second water outlet are connected to the primary circulation system.

[0009] Preferably, the first water inlet is arranged at the bottom of the tank body, and the second water inlet is arranged at the top of the tank body.

[0010] Preferably, the first filter screen is conical, and the first filter screen is arranged at the bottom of the tank body, and the diameter of the first filter screen gradually decreases from bottom to top.

[0011] Preferably, the second filter screen is conical, the second filter screen is arranged on the top of the tank body, and the diameter of the second filter screen gradually decreases from top to bottom.

[0012] Preferably, the bottom of the first filter screen is connected to the top of the second filter screen.

[0013] Preferably, the aperture range of the first filter screen and the second filter screen is 5 mesh to 40 mesh. The first filter screen and the second filter screen can not only filter the circulating water and block impurities in the circulating water, but also make the water flow evenly distributed, so that the primary circulating water and the secondary circulating water are fully mixed.

[0014] Preferably, the first water outlet and the second water outlet are arranged on the side wall of the tank body.

[0015] Preferably, the first water outlet and the second water outlet are at the center of the tank body height. The first water outlet and the second water outlet are at the same distance relative to the first water inlet and the second water inlet, so that the primary circulating water and the secondary circulating water are fully mixed before being discharged.

[0016] Preferably, the can body comprises a can body and a cover, wherein the cover is arranged at the bottom of the can body and is detachably connected to the can body. The cover is connected and fixed to the can body by means of a buckle, a thread or a lock to achieve a detachable connection.

[0017] Preferably, the first water inlet is arranged on the sealing cover.

[0018] Beneficial effects:

[0019] 1. The present invention provides a coupling tank, which achieves the function of equalizing flow while filtering through a conical first filter and a second filter, so that high-temperature water and low-temperature water are completely mixed in the pipe body and then enter the internal circulation of the primary and secondary systems respectively. The conical first filter and the second filter allow the circulating water of the two sides to enter the circulation system after being filtered respectively, and the impurity precipitation and scale generated by the primary high-temperature water will not enter the secondary system; the algae and rust generated by the secondary system are isolated on the secondary side.

[0020] 2. In the present invention, the cover is detachably connected to the tank body, so that the first filter screen and the second filter screen can be taken out and cleaned regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a structural schematic diagram of a coupling tank in Example 1 of the present invention;

[0023] In the figure: 1-tank body, 11-tank body, 12-cover, 2-first water inlet, 3-second water inlet, 4-first water outlet, 5-second water outlet, 6-first filter screen, 7-second filter screen. DETAILED DESCRIPTION

[0024] The content of the present invention can be more easily understood by selecting the following detailed description of the preferred implementation method of the present invention and the embodiments included. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those of ordinary skill in the art to which the present invention belongs. When there is a conflict, the definition in this specification shall prevail.

[0025] Embodiment 1:

[0026] like Figure 1 A coupling tank is shown, comprising:

[0027] The tank body 1 is provided with a first water inlet 2, a second water inlet 3, a first water outlet 4 and a second water outlet 5. The first water inlet 2 is arranged opposite to the second water inlet 3, the first water outlet 4 is arranged opposite to the second water outlet 5, a first filter screen 6 is arranged at the first water inlet 2, and a second filter screen 7 is arranged at the second water inlet 3. The first water inlet 2 and the first water outlet 4 are connected to the secondary circulation system, and the second water inlet 3 and the second water outlet 5 are connected to the primary circulation system.

[0028] The first water inlet 2 is arranged at the bottom of the tank body 1, and the second water inlet 3 is arranged at the top of the tank body 1. The first filter screen 6 is conical, and the first filter screen 6 is arranged at the bottom of the tank body 1, and the diameter of the first filter screen 6 gradually decreases from bottom to top. The second filter screen 7 is conical, and the second filter screen 7 is arranged at the top of the tank body 1, and the diameter of the second filter screen 7 gradually decreases from top to bottom. The bottom of the first filter screen 6 is connected to the top of the second filter screen 7. The aperture range of the first filter screen 6 and the second filter screen 7 is 20 mesh.

[0029] The first water outlet 4 and the second water outlet 5 are arranged on the side wall of the tank body 1. The first water outlet 4 and the second water outlet 5 are at the center of the tank body 1 in height.

[0030] The tank body 1 comprises a tank body 11 and a cover 12, wherein the cover 12 is arranged at the bottom of the tank body 11 and is connected to the tank body 11 by threads. The first water inlet 2 is arranged on the cover 12.

[0031] Working principle: the primary circulating water of the primary circulation system enters the second water inlet 3, and enters the tank body 1 after being filtered and balanced by the second filter 7; the secondary circulating water of the secondary circulation system first enters the first water inlet 2, and enters the tank body 1 after being filtered and balanced by the first filter 6. The high and low temperature water of the primary circulating water and the secondary circulating water are mixed in the tank body 1. Due to the presence of the first filter 6 and the second filter 7, whether the water flow of the primary circulating water and the secondary circulating water is balanced or not, it does not affect the mixing of water in the tank body 1, avoiding the reflux of high temperature or low temperature water, and increasing the heat coupling efficiency.

Claims

1. A coupling tank, characterized in that: include: A tank body, wherein a first water inlet, a second water inlet, a first water outlet and a second water outlet are arranged on the tank body, the first water inlet is arranged opposite to the second water inlet, the first water outlet is arranged opposite to the second water outlet, a first filter is arranged at the first water inlet, and a second filter is arranged at the second water inlet.

2. A coupling tank according to claim 1, characterized in that: The first water inlet is arranged at the bottom of the tank body, and the second water inlet is arranged at the top of the tank body.

3. A coupling tank according to claim 2, characterized in that: The first filter screen is conical and is arranged at the bottom of the tank body. The diameter of the first filter screen gradually decreases from bottom to top.

4. A coupling tank according to claim 3, characterized in that: The second filter screen is conical, and is arranged on the top of the tank body. The diameter of the second filter screen gradually decreases from top to bottom.

5. A coupling tank according to claim 4, characterized in that: The bottom of the first filter screen is connected to the top of the second filter screen.

6. A coupling tank according to claim 1 or 5, characterized in that: The apertures of the first filter screen and the second filter screen range from 5 mesh to 40 mesh.

7. A coupling tank according to claim 6, characterized in that: The first water outlet and the second water outlet are arranged on the side wall of the tank body.

8. A coupling tank according to claim 7, characterized in that: The first water outlet and the second water outlet are located at the center of the tank body.

9. A coupling tank according to claim 1, characterized in that: The can body comprises a can body and a blind cover, wherein the blind cover is arranged at the bottom of the can body and is detachably connected to the can body.

10. A coupling tank according to claim 1, characterized in that: The first water inlet is arranged on the sealing cover.

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