Heat distribution pipeline device for eliminating flow deviation

Abstract

The utility model relates to the field of heating power inlet devices, and provides a heating power pipeline device for eliminating flow deviation, which comprises a water supply pipe and a water return pipe, the water supply pipe comprises a first water supply pipeline, a second water supply pipeline, a third water supply pipeline and a fourth water supply pipeline, and the first water supply pipeline, the second water supply pipeline, the third water supply pipeline, the static hydraulic balance valve and the fourth water supply pipeline are communicated in sequence; the water return pipe comprises a first water return pipeline, a second water return pipeline and a third water return pipeline; according to the utility model, the static balance valve and the dynamic differential pressure valve are combined for use, so that the problems in the prior art are solved, specifically, the static balance valve is mainly used for measuring, regulating and controlling the flow, and the dynamic differential pressure balance valve is arranged on the water return pipe of the heat supply pipeline, so that the flow deviation caused by pressure fluctuation of an external network is eliminated.

Description

Technical Field

[0001] The utility model relates to the field of thermal inlets, in particular to a thermal pipeline device for eliminating flow deviation. Background Art

[0002] Static balancing valves can solve the problem of uneven hydraulic distribution caused by end resistance and different pipe lengths, but they cannot solve the impact of other end closing or shutting down on the branch where they are located - the so-called "dynamic imbalance". The dynamic differential pressure balancing valve is used to solve this problem - it eliminates flow changes caused by pressure fluctuations through a built-in spring device;

[0003] The dynamic differential pressure balancing valve has a spring structure inside. During the debugging process, the spring stretch length keeps changing, and its Kvs value (i.e., valve opening) keeps changing. When the Kvs value of the dynamic differential pressure balancing valve keeps changing, flow measurement cannot be achieved. Utility Model Content

[0004] The utility model proposes a thermal pipeline device for eliminating flow deviation. By combining a static balancing valve and a dynamic pressure differential valve, the problems in the prior art are perfectly solved. Specifically, the main function of the static balancing valve is to measure and regulate the flow rate. The dynamic pressure differential balancing valve is installed on the return pipe of the heating pipeline. The working chamber of the static balancing valve is connected to the water supply pipe through a control pipe. The valve core is driven to close through a built-in pressure-sensitive membrane, thereby eliminating the flow deviation caused by external network pressure fluctuations.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A thermal pipeline device for eliminating flow deviation, comprising: a water supply pipe and a water return pipe;

[0007] The water supply pipe includes a first water supply pipe, a second water supply pipe, a third water supply pipe and a fourth water supply pipe, and the first water supply pipe, the second water supply pipe, the third water supply pipe, the static hydraulic balancing valve and the fourth water supply pipe are connected in sequence;

[0008] The third water supply pipeline is connected to the fourth water supply pipeline via a static hydraulic balancing valve;

[0009] The water return pipe comprises a first water return pipe, a second water return pipe and a third water return pipe, wherein the first water return pipe, the second water return pipe and the third water return pipe;

[0010] The first water return pipe is connected to the second water return pipe through a dynamic pressure difference balancing valve.

[0011] Furthermore, it also includes a bypass ball valve, one end of which is connected to the first water supply pipe through a first bypass pipe, and the other end of which is connected to the third water return pipe through a second bypass pipe.

[0012] Further, the water supply pipe also includes a first ball valve;

[0013] The first water supply pipeline is connected to the second water supply pipeline through the first ball valve;

[0014] The water return pipe also includes a second ball valve;

[0015] The second water return pipe is communicated with the third water return pipe through the second ball valve.

[0016] Furthermore, the water supply pipe also includes a vertical straight-through dirt remover and a first air release valve;

[0017] A vertical straight-through dirt remover is installed on the second water supply pipeline;

[0018] The first air release valve is installed on the first water supply pipe, the second water supply pipe or the fourth water supply pipe.

[0019] Further, the second water supply pipeline is connected to the third water supply pipeline through an ultrasonic heat meter detection pipeline;

[0020] The ultrasonic heat meter is installed on the ultrasonic heat meter detection pipeline.

[0021] Furthermore, the water return pipe further includes a second air release valve and a first water discharge valve;

[0022] The second air release valve is installed on the first water return pipe or the third water return pipe;

[0023] The first drain valve is installed on the second water return pipe.

[0024] Furthermore, a second drain valve is provided on the vertical straight-through dirt remover.

[0025] The utility model perfectly solves the problems in the prior art by combining the static balancing valve and the dynamic differential pressure valve. Specifically, the main function of the static balancing valve is to measure the flow rate. The dynamic differential pressure balancing valve is installed on the return pipe of the heating pipeline. The working chamber of the static balancing valve is connected to the water supply pipe through the control pipe. The valve core is driven to close through the built-in pressure-sensitive membrane, thereby eliminating the flow deviation caused by the pressure fluctuation of the external network.

[0026] Beneficial effects:

[0027] 1. Reduce construction costs, and make the adjustment process faster and more efficient;

[0028] 2. It provides a new solution for the modern heating industry to achieve the goal of pipe network balance and one-stop management. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a structural top view of a thermal pipeline device for eliminating flow deviation in a specific embodiment of the utility model;

[0031] Figure 2 for Figure 1 The AA structural schematic diagram of a thermal pipeline device for eliminating flow deviation is shown;

[0032] Description of reference numerals: water supply pipe 1; first water supply pipe 1-1; second water supply pipe 1-2; third water supply pipe 1-3; fourth water supply pipe 1-4; static hydraulic balancing valve 2; dynamic differential pressure balancing valve 3; return pipe 4; first return pipe 4-1; second return pipe 4-2; third return pipe 4-3; vertical straight-through decontaminant 5; second air release valve 6; bypass ball valve 7; first bypass pipe 71; second bypass pipe 72; first drain valve 8; ultrasonic heat meter 9; ultrasonic heat meter detection pipe 10; second ball valve 11; second drain valve (12) first air release valve 13; drainage pipe 14; first ball valve 15; DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the specific embodiment of the present invention, see Figure 1-Figure 2 , a thermal pipeline device for eliminating flow deviation, comprising: a water supply pipe 1 and a water return pipe 4;

[0035] The water supply pipe 1 includes a first water supply pipe 1-1, a second water supply pipe 1-2, a third water supply pipe 1-3, and a fourth water supply pipe 1-4, and the first water supply pipe 1-1, the second water supply pipe 1-2, the third water supply pipe 1-3 and the fourth water supply pipe 1-4 are connected in sequence;

[0036] The third water supply pipeline 1-3 and the fourth water supply pipeline 1-4 are connected via a static hydraulic balancing valve 2;

[0037] The water supply pipe 1 is an insulated pipe used to connect indoor and outdoor heating and water supply pipes, and is a seamless steel pipe;

[0038] Static hydraulic balancing valve 2 is used for static regulation in the initial stage of heating network commissioning.

[0039] In the specific embodiment of the present invention, see Figure 1-Figure 2 The return pipe 4 includes a first return pipe 4-1, a second return pipe 4-2 and a third return pipe 4-3. The first return pipe 4-1, the second return pipe 4-2 and the third return pipe 4-3;

[0040] The first water return pipe 4-1 is connected to the second water return pipe 4-2 via a dynamic pressure difference balancing valve 3;

[0041] The dynamic differential pressure balancing valve 3 is used to eliminate the flow deviation caused by the external network pressure fluctuation.

[0042] In the specific embodiment of the present invention, see Figure 1-Figure 2 , further comprising a bypass ball valve 7, one end of the bypass ball valve 7 being connected to the first water supply pipe 1-1 through a first bypass pipe 71, and the other end of the bypass ball valve 7 being connected to the third water return pipe 4-3 through a second bypass pipe 72;

[0043] The bypass ball valve is used for circulation cleaning of outdoor pipe network.

[0044] In the specific embodiment of the present invention, see Figure 1-Figure 2 , the water supply pipe 1 also includes a first ball valve 15;

[0045] The first ball valve 15 is a ball valve used to shut off the water supply of the heating network;

[0046] The first water supply pipeline 1-1 is connected to the second water supply pipeline 1-2 through the first ball valve 15;

[0047] The water return pipe 4 also includes a second ball valve 11;

[0048] The second water return pipe 4 - 2 is connected to the third water return pipe 4 - 3 through the second ball valve 11 .

[0049] In the specific embodiment of the present invention, see Figure 1-Figure 2 , the water supply pipe 1 also includes a vertical straight-through dirt remover 5 and a first air release valve 13;

[0050] A vertical straight-through dirt remover 5 is installed on the second water supply pipe 1-2;

[0051] Vertical straight-through decontaminant 5 is a vertical straight-through decontaminant used for filtering water supply in the heating network;

[0052] The first air release valve 13 is installed on the first water supply pipe 1-1, the second water supply pipe 1-2 or the fourth water supply pipe 1-4.

[0053] In the specific embodiment of the present invention, see Figure 1-Figure 2 , the second water supply pipeline 1-2 is connected to the third water supply pipeline 1-3 through the ultrasonic heat meter detection pipeline 10;

[0054] The ultrasonic heat meter 9 is installed on the ultrasonic heat meter detection pipeline 10 .

[0055] In the specific embodiment of the present invention, see Figure 1-Figure 2 , the return pipe 4 also includes a second air release valve 6 and a first drain valve 8;

[0056] The second air release valve 6 is installed on the first water return pipe 4-1 or the third water return pipe 4-3;

[0057] The first drain valve 8 is installed on the second return water pipe 4-2;

[0058] The second air release valve 6 is used for releasing air from the heating network water supply.

[0059] In the specific embodiment of the present invention, see Figure 1-Figure 2 The vertical straight-through dirt remover 5 is provided with a second drain valve 12.

[0060] In the specific embodiment of the present invention, see Figure 1-Figure 2 The first drain valve 8 and the second drain valve 12 are both connected to a drainage pipe 14 .

[0061] In the specific embodiment of the present invention, see Figure 1-Figure 2 The water supply from the outdoor heating secondary network is decontaminated by a vertical straight-through decontaminator, passes through an ultrasonic heat meter and a static hydraulic balance valve, and then enters the indoor heating system;

[0062] After the hot water is heat exchanged at the indoor heating terminal, the return water passes through the dynamic pressure differential balancing valve and the first ball valve and enters the return pipe of the outdoor heating network (i.e., the third return pipe);

[0063] In the early stage of heating commissioning, the heating network commissioning personnel adjust the opening of the static hydraulic balancing valve installed in the water supply pipe according to the pressure difference and flow of each pipeline given in the design, so that the pipe network can achieve static balance;

[0064] After the heating starts, the dynamic differential pressure balancing valve installed in the return pipe measures the pressure value of the water supply pipe in real time through the signal pipe, keeps the differential pressure constant through differential pressure negative feedback, shields external interference, and maintains the dynamic balance of the pipeline;

[0065] The calorimeter uses an ultrasonic calorimeter, which has high measurement accuracy and the flow measurement accuracy is almost unaffected by the measured fluid temperature, pressure, viscosity, density and other parameters;

[0066] The first ball valve 15 and the second ball valve 11 are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It can rotate 90°. The plug body is a sphere with a circular through hole or channel passing through its axis. It only needs to rotate 90° and a very small torque to close tightly. It has the characteristics of wear resistance, good sealing performance, light switch, long service life, etc., and is most suitable for use as a switch and cut-off valve;

[0067] The bypass valve 7, the first drain valve 8 and the second air release valve 6 in the present application are all ball valves, which can ensure long-term stable and flexible operation, and have a long service life and very small fluid resistance.

[0068] The present application solves the problems existing in traditional regulating devices and regulating methods, such as repeated well chamber settings, inaccurate flow measurement, cumbersome regulating process, and high requirements on the professional knowledge and skills of the staff. In the thermal inlet device, the static valve is used in conjunction with the pressure differential valve, which greatly saves construction and operating costs and generates great social and environmental benefits.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal pipeline device for eliminating flow deviation, comprising: A water supply pipe (1) and a water return pipe (4); Characterized in that: the water supply pipe (1) comprises a first water supply pipe (1-1), a second water supply pipe (1-2), a third water supply pipe (1-3) and a fourth water supply pipe (1-4); the first water supply pipe (1-1), the second water supply pipe (1-2), the third water supply pipe (1-3), the static hydraulic balancing valve (2) and the fourth water supply pipe (1-4) are connected in sequence; The third water supply pipeline (1-3) is connected to the fourth water supply pipeline (1-4) via a static hydraulic balancing valve (2); The water return pipe (4) comprises a first water return pipe (4-1), a second water return pipe (4-2) and a third water return pipe (4-3); the first water return pipe (4-1), the second water return pipe (4-2) and the third water return pipe (4-3); The first water return pipe (4-1) and the second water return pipe (4-2) are connected via a dynamic pressure difference balancing valve (3).

2. A thermal pipeline device for eliminating flow deviation according to claim 1, characterized in that: It also includes a bypass ball valve (7), one end of which is connected to the first water supply pipe (1-1) through a first bypass pipe (71), and the other end of which is connected to the third water return pipe (4-3) through a second bypass pipe (72).

3. A thermal pipeline device for eliminating flow deviation according to claim 1, characterized in that: The water supply pipe (1) further comprises a first ball valve (15); The first water supply pipeline (1-1) is connected to the second water supply pipeline (1-2) via the first ball valve (15); The water return pipe (4) further comprises a second ball valve (11); The second water return pipe (4-2) is connected to the third water return pipe (4-3) via the second ball valve (11).

4. A thermal pipeline device for eliminating flow deviation according to claim 3, characterized in that: The water supply pipe (1) further comprises a vertical straight-through dirt remover (5) and a first air release valve (13); A vertical straight-through dirt remover (5) is installed on the second water supply pipeline (1-2); The first air release valve (13) is installed on the first water supply pipeline (1-1), the second water supply pipeline (1-2) or the fourth water supply pipeline (1-4).

5. A thermal pipeline device for eliminating flow deviation according to claim 1, characterized in that: The second water supply pipeline (1-2) is connected to the third water supply pipeline (1-3) via an ultrasonic heat meter detection pipeline (10); An ultrasonic heat meter (9) is installed on the ultrasonic heat meter detection pipeline (10).

6. A thermal pipeline device for eliminating flow deviation according to claim 5, characterized in that: The water return pipe (4) further comprises a second air release valve (6) and a first water discharge valve (8); The second air release valve (6) is installed on the first water return pipe (4-1) or the third water return pipe (4-3); The first drain valve (8) is installed on the second return water pipe (4-2).

7. A thermal pipeline device for eliminating flow deviation according to claim 4, characterized in that: The vertical straight-through dirt remover (5) is provided with a second drain valve (12).

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