Slow-release dosing device for heat supply network scale inhibitor

Abstract

The utility model relates to a heat supply network scale inhibitor slow-release dosing device. Comprising a scale inhibitor diluting and preparing assembly, a circulating assembly and a dosing assembly, the scale inhibitor dilution preparation assembly comprises a liquid medicine stirring tank and a stirring assembly; the circulating assembly comprises a heat supply network access pipe connected into the heat supply network pipeline, a circulating pipeline and a circulating pump, one end of the circulating pipeline is connected to a water outlet in the heat supply network access pipe through a water taking pipe, the other end of the circulating pipeline is connected to a water inlet of the circulating pump, and a water outlet of the circulating pump is connected to a water return port in the heat supply network access pipe through a water return pipe; the dosing assembly comprises a dosing pipeline with a booster pump, one end of the dosing pipeline is connected with the circulating pipeline, and the other end of the dosing pipeline is connected with a bottom outlet of the liquid medicine stirring tank. According to the heat supply network scale inhibitor slow-release dosing device provided by the utility model, the scale inhibitor is slowly and uniformly released into a heat supply network pipeline, the scale inhibitor is promoted to quickly reach a uniform state in the pipeline, and the scale inhibition effect on the heat supply network pipeline is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat supply network facility technical field especially relates to a heat supply network scale inhibitor slow -release dosing device. BACKGROUND

[0002] Heat supply network refers to heat supply pipe network, is the main component of central heating system, and is responsible for the task of heat energy transportation. Heat supply network usually uses water as circulating medium. With the heat supply network water heat circulation, scale is formed in the inside of heat supply network pipeline. After the formation of scale layer, the problems such as the increase of heating energy consumption and the deterioration of heating effect are caused, and necessary intervention measures need to be introduced to solve the foregoing problems. The existing measure is to add scale inhibitor into heat supply network pipeline, and the scale inhibitor is used to slow down the formation of scale layer.

[0003] In the prior art, the mode of adding scale inhibitor into heat supply network pipeline is usually centralized dosing, that is, the scale inhibitor is added into heat supply network water source at one time, and the scale inhibitor is gradually made uniform by subsequent water circulation in the heat supply network pipeline. The centralized dosing mode has the following problems: it is difficult to quickly form the uniform state of scale inhibitor in the heat supply network pipeline, resulting in unsatisfactory scale inhibition effect of the pipeline. In summary, it is necessary to develop and design a facility for adding scale inhibitor to heat supply network to solve the foregoing technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a heat supply network scale inhibitor slow -release dosing device, which slowly and uniformly releases the scale inhibitor into the heat supply network pipeline, promotes the scale inhibitor to quickly reach the uniform state in the pipeline, and improves the scale inhibition effect on the heat supply network pipeline.

[0005] The utility model adopts the technical scheme of a heat supply network scale inhibitor slow -release dosing device, which comprises a scale inhibitor dilution preparation assembly, a circulating assembly and a dosing assembly. The scale inhibitor dilution preparation assembly comprises a liquid medicine stirring tank and a stirring assembly. The circulating assembly comprises a heat supply network access pipe connected to the heat supply network pipeline, a circulating pipeline and a circulating pump. One end of the circulating pipeline is connected to a water outlet on the heat supply network access pipe through a water taking pipe. The other end of the circulating pipeline is connected to a water inlet of the circulating pump. A water outlet of the circulating pump is connected to a backwater outlet on the heat supply network access pipe through a backwater pipe. The dosing assembly comprises a dosing pipeline with a booster pump. One end of the dosing pipeline is connected to the circulating pipeline. The other end of the dosing pipeline is connected to a bottom outlet of the liquid medicine stirring tank.

[0006] Preferably, a medicine supplementing pipe and a water supplementing pipe are installed on the side wall of the liquid medicine stirring tank. An inspection hole is further arranged on the side wall of the liquid medicine stirring tank, and an inspection door is installed on the inspection hole.

[0007] Preferably, the stirring assembly comprises a stirring motor installed on the top of the liquid medicine stirring tank by a motor base, and further comprises a stirring shaft and a stirring impeller located inside the liquid medicine stirring tank, and the lower end of the output shaft of the stirring motor is connected with the upper end of the stirring shaft of the stirring shaft and the stirring impeller by a shaft coupling.

[0008] Preferably, a circulating pipeline filter is installed on the circulating pipeline, and a dosing pipeline filter is installed on the dosing pipeline.

[0009] Preferably, a circulating pipeline flowmeter is installed on the circulating pipeline, and a dosing pipeline flowmeter is installed on the dosing pipeline.

[0010] Preferably, the device further comprises a support, which comprises a support base and a support back frame, the liquid medicine stirring tank is fixedly installed in the middle of the support base, the circulating pump and the booster pump are respectively located on the two sides of the liquid medicine stirring tank, the circulating pipeline and the dosing pipeline are fixedly installed on the support back frame, and a control box is further installed on the support back frame.

[0011] The device has the advantages and positive effects that:

[0012] The device has the advantages and positive effects that:

[0013] The device has the advantages and positive effects that: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the device;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the main part of the device.

[0016] In the drawings:

[0017] 1, dosing line filter; 2, dosing line flowmeter; 3, dosing line; 4, booster pump; 5, circulating line flowmeter; 6, circulating line filter; 7, stirring motor; 8, medicine supplementing pipe; 9, water supplementing pipe; 10, stirring shaft and stirring impeller; 11, water taking pipe; 12, motor base; 13, access hole; 14, medicine stirring tank; 15, support; 16, circulating pump; 17, heat network access pipe; 18, control box; 19, circulating line; 20, backwater pipe. DETAILED DESCRIPTION

[0018] In order to further understand the inventive content, characteristics and effects of the present application, the following embodiments are described in detail.

[0019] Please refer to Figure 1 and Figure 2 The heat network scale inhibitor slow-release dosing device of the present application comprises a scale inhibitor dilution preparation assembly, a circulating assembly and a dosing assembly. The scale inhibitor dilution preparation assembly is used for diluting concentrated scale inhibitor to prepare the required medicine liquid for dosing. The circulating assembly is used for extracting circulating water from the heat network pipeline and re-injecting the circulating water into the heat network pipeline after dosing by the dosing assembly. The dosing assembly is used for slow-release dosing of the medicine liquid into the circulating assembly, and finally achieves the technical effect of slow-release dosing of the scale inhibitor into the heat network pipeline.

[0020] The scale inhibitor dilution preparation assembly comprises a medicine stirring tank 14 and a stirring assembly. The concentrated scale inhibitor and clean water are added into the medicine stirring tank 14 and stirred uniformly by the stirring assembly to form scale inhibitor medicine liquid.

[0021] In this embodiment, the medicine supplementing pipe 8 and the water supplementing pipe 9 are installed on the side wall of the medicine stirring tank 14, and the access hole 13 is also provided on the side wall of the medicine stirring tank 14 and installed with an access door. The concentrated scale inhibitor is injected into the medicine stirring tank 14 through the medicine supplementing pipe 8, and the clean water is injected into the medicine stirring tank 14 through the water supplementing pipe 9. The access hole 13 is provided for maintenance of the internal stirring assembly.

[0022] In this embodiment, the stirring assembly comprises a stirring motor 7 installed on the top of the medicine stirring tank 14 by a motor base 12, and a stirring shaft and a stirring impeller 10 located inside the medicine stirring tank 14. The upper end of the stirring shaft of the stirring shaft and the stirring impeller 10 is connected to the lower end of the output shaft of the stirring motor 7 by a shaft coupling.

[0023] The circulating assembly comprises a heat network access pipe 17 accessing the heat network pipe, a circulating pipe 19 and a circulating pump 16. One end of the circulating pipe 19 is connected to a water outlet on the heat network access pipe 17 through the water taking pipe 11, the other end of the circulating pipe 19 is connected to a water inlet of the circulating pump 16, and a water outlet of the circulating pump 16 is connected to a water return port on the heat network access pipe 17 through the water return pipe 20. The heat network access pipe 17 accesses the heat network pipe, so that the slow-release dosing device does not affect the normal operation of the heat network pipe.

[0024] Under the action of the circulating pump 16, the heat network circulating water in the heat network access pipe 17 flows out of the water outlet and enters the water taking pipe 11, then enters the circulating pipe 19, and then reenters the heat network access pipe 17 through the circulating pump 16 and the water return pipe 20, forming a circulating flow. It is worth noting that the heat network water circulating in the circulating assembly is not completely closed. Since the heat network pipe and the heat network circulating water in the heat network access pipe 17 have a certain flow rate, only a part of the heat network water enters the circulating assembly, and the other part of the heat network water directly passes through the heat network access pipe 17.

[0025] The dosing assembly comprises a dosing pipe 3 with a booster pump 4. One end of the dosing pipe 3 is connected to the circulating pipe 19, and the other end of the dosing pipe 3 is connected to the bottom outlet of the liquid stirring tank 14. Under the action of the booster pump 4, the scale inhibitor liquid in the liquid stirring tank 14 is injected into the circulating pipe 19 in a pressurized manner to participate in the circulation of the heat network water. By controlling the operation of the booster pump 4, the technical effect of slow-release addition of the scale inhibitor into the heat network pipe can be achieved.

[0026] In this embodiment, a circulating pipe filter 6 is installed on the circulating pipe 19, and a dosing pipe filter 1 is installed on the dosing pipe 3. By setting the circulating pipe filter 6 and the dosing pipe filter 1, the heat network circulating water in the circulating pipe 19 and the scale inhibitor liquid in the dosing pipe 3 are filtered respectively to intercept particulate matter, improve the cleanliness of the heat network circulating water and the scale inhibitor liquid, and avoid pipe blockage.

[0027] In this embodiment, a circulating pipe flow meter 5 is installed on the circulating pipe 19, and a dosing pipe flow meter 2 is installed on the dosing pipe 3. By setting the circulating pipe flow meter 5 and the dosing pipe flow meter 2, the flow rates in the circulating pipe 19 and the dosing pipe 3 are measured respectively. Generally, the flow rate value measured by the circulating pipe flow meter 5 and the flow rate value measured by the dosing pipe flow meter 2 should have a relatively stable proportional relationship. The flow rate values of the two flow meters are used to provide a reference basis for whether the system is operating normally.

[0028] In the embodiment, the support 15 is also included, which comprises a support base and a support back. The liquid mixing tank 14 is fixed in the middle of the support base. The circulating pump 16 and the booster pump 4 are respectively arranged on both sides of the liquid mixing tank 14. The circulating pipeline 19 and the dosing pipeline 3 are fixed on the support back. The water taking pipeline 11 is also fixed on the support back. The control box 18 is also arranged on the support back, which is used to control the start and stop of the stirring motor 7 and the operation of the circulating pump 16 and the booster pump 4.

[0029] Working process:

[0030] The concentrated scale inhibitor and clean water are added into the liquid mixing tank 14. The stirring motor 7 is started by the control box 18. The stirring shaft and the stirring impeller 10 provide stirring effect to form the diluted scale inhibitor. Then the rotating speed of the stirring motor 7 is reduced by the control box 18 to continuously provide stirring effect to the scale inhibitor and keep the uniformity of the scale inhibitor.

[0031] The control box 18 controls the start of the circulating pump 16 and the booster pump 4. Specifically, the circulating pump 16 is started. The heat network circulating water in the heat network access pipeline 17 enters the circulating assembly to form circulating flow. The booster pump 4 is started. The scale inhibitor in the liquid mixing tank 14 is injected into the circulating pipeline 19 in the form of pressure boost. The diluted scale inhibitor is mixed with the heat network circulating water in the circulating pipeline 19. Then the mixed water is re-injected into the heat network access pipeline 17 through the backwater pipeline 20 and finally enters the heat network pipeline. The slow release and uniform dosing effect of the scale inhibitor is achieved to improve the scale inhibition effect on the heat network pipeline.

Claims

1. A slow-release dosing device for scale inhibitors in heating networks, characterized in that: The system includes a scale inhibitor dilution and preparation component, a circulation component, and a dosing component. The scale inhibitor dilution and preparation component includes a chemical mixing tank (14) and a mixing component. The circulation component includes a heat network access pipe (17) connected to the heat network pipeline, a circulation pipeline (19), and a circulation pump (16). One end of the circulation pipeline (19) is connected to the outlet of the heat network access pipe (17) through a water intake pipe (11), and the other end of the circulation pipeline (19) is connected to the inlet of the circulation pump (16). The outlet of the circulation pump (16) is connected to the return port of the heat network access pipe (17) through a return water pipe (20). The dosing component includes a dosing pipeline (3) with a booster pump (4). One end of the dosing pipeline (3) is connected to the circulation pipeline (19), and the other end of the dosing pipeline (3) is connected to the bottom outlet of the chemical mixing tank (14).

2. The slow-release dosing device for scale inhibitor in heating networks as described in claim 1, characterized in that: in The side wall of the medicine mixing tank (14) is equipped with a medicine replenishment pipe (8) and a water replenishment pipe (9). The side wall of the medicine mixing tank (14) is also equipped with an inspection port (13) and an inspection door.

3. The slow-release dosing device for scale inhibitor in heating networks as described in claim 2, characterized in that: The stirring assembly includes a stirring motor (7) mounted on the top of the drug solution stirring tank (14) using a motor mount (12), and also includes a stirring shaft and a stirring impeller (10) located inside the drug solution stirring tank (14). The upper end of the stirring shaft of the stirring shaft and the stirring impeller (10) are connected to the lower end of the output shaft of the stirring motor (7) by a coupling.

4. The slow-release dosing device for scale inhibitor in heating networks as described in claim 1, characterized in that: A circulation line filter (6) is installed on the circulation line (19), and a dosing line filter (1) is installed on the dosing line (3).

5. The slow-release dosing device for scale inhibitor in heating networks as described in claim 1, characterized in that: A circulation flow meter (5) is installed on the circulation pipeline (19), and a dosing flow meter (2) is installed on the dosing pipeline (3).

6. The slow-release dosing device for scale inhibitor in heating networks as described in any one of claims 1 to 5, characterized in that: It also includes a bracket (15), which includes a support base and a support back frame. The medicine mixing tank (14) is installed and fixed in the middle of the support base. The circulation pump (16) and the booster pump (4) are located on both sides of the medicine mixing tank (14). The circulation pipeline (19) and the dosing pipeline (3) are installed and fixed on the support back frame. A control box (18) is also installed on the support back frame.

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