Waterway pipeline structure of cross-flow closed cooling tower

Abstract

The utility model discloses a waterway pipeline structure of a cross-flow closed cooling tower, which relates to the technical field of cooling towers and comprises a water inlet pipe, a water outlet pipe, a coil pipe, a water inlet branch pipe and a water outlet branch pipe, the water inlet pipe is communicated with a water inlet of the coil pipe through the water inlet branch pipe, and the water outlet pipe is communicated with a water outlet of the coil pipe through the water outlet branch pipe. The water inlet branch pipe and the water outlet branch pipe are both arranged on the inner side of the coil pipe, and the water inlet pipe and the water outlet pipe are arranged below a rack of the transverse flow closed cooling tower and communicated with the water inlet branch pipe and the water outlet branch pipe respectively. The water inlet branch pipe and the water outlet branch pipe no longer hinder movement of the coil pipe, and the operation difficulty is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooling tower, especially to a waterway pipeline structure of cross flow closed cooling tower. BACKGROUND

[0002] The closed cooling tower works in three parts circulation. The first side circulation (external circulation) of the heat-carrying solution (circulating hot water) flows through the coil of the closed cooling tower, which is divided into four stages for heat transfer: ① the heat of the heat-carrying solution is first transferred to the inner surface of the coil by convection heat transfer; ② the heat is conducted through the pipe wall to the outer surface of the coil; ③ the outer surface of the coil is convected to the water film flowing outside the pipe; ④ finally, the water film is transferred to the air by evaporation and convection heat transfer. The second side circulation (self circulation) is that the spray water is pumped from the lower water tray of the cooling tower to the water distribution system by the spray water pump, uniformly distributed on the heat dissipation material by the water distribution piece, and exchanges latent heat and sensible heat with the air to pre-cool, then flows to the coil group to form a stable water film on the outer wall of the pipe to absorb the heat transferred by the medium in the pipe, and finally returns to the water tray. Air circulation: the fan sucks the unsaturated air outside the cooling tower into the tower, and the airflow exchanges latent heat and sensible heat with the spray water of the second side circulation (self circulation) passing through the coil and the heat dissipation material to absorb heat, then separates the water vapor through a special water baffle, and finally discharges the nearly saturated wet air outside the tower. Through the above three circulation and four-stage heat exchange, the closed cooling tower cools the first heat-carrying solution to the required temperature to return to the system to maintain its normal operation.

[0003] The existing closed cooling tower has a design idea of providing an upper and lower layered, multi-segment modular design structure of the heat dissipation coil to realize the purpose of starting and stopping at any time and disassembling and repairing at any time. For example, the manufacturing process of a closed cooling tower with a heat dissipation coil modular design with the patent number 200510030108.6 mainly includes the following steps: providing an upper and lower layered, multi-segment modular design structure of the heat dissipation coil. The scheme is ingenious, the coil is designed in a modular way, and each layer of structure is the same, which is simple and convenient for manufacturing and storage, can reduce manufacturing cost, and is easy to assemble, and is extremely valuable for promotion. The similar idea is also disclosed in the patent number 201410065820.9, a coil of a counterflow closed cooling tower, but the existing technology has the problem of unreasonable waterway arrangement and inconvenient disassembly and maintenance. Please refer to the attached Figure 1 The coil waterway is designed in a modular mode, but the water inlet pipe and the water outlet pipe are arranged on the inner side and the outer side of the coil, especially the water inlet pipe and the water outlet pipe on the outer side, which will hinder the maintenance of the coil. It is necessary to further improve the use effect of the modular coil and optimize the waterway pipeline structure. UTILITY MODEL CONTENTS

[0004] The purpose of this utility model is to provide a water pipe structure for a crossflow closed cooling tower. By arranging the inlet and outlet water pipes inside the coil, the problem of the inlet and outlet water pipes obstructing the removal and maintenance of the coil is avoided.

[0005] According to one aspect of this disclosure, the following technical solution is provided: a water pipe structure for a crossflow closed-circuit cooling tower, including an inlet pipe, an outlet pipe, a coil, an inlet branch pipe, and an outlet branch pipe. The inlet pipe is connected to the inlet of the coil via the inlet branch pipe, and the outlet pipe is connected to the outlet of the coil via the outlet branch pipe. Both the inlet and outlet branch pipes are arranged inside the coil. The inlet and outlet pipes are arranged below the frame of the crossflow closed-circuit cooling tower and are respectively connected to the inlet and outlet branch pipes.

[0006] Furthermore, the coil is a heat dissipation coil with an upper and lower layered, multi-segment modular design.

[0007] Furthermore, the water inlet pipe and the water outlet pipe are detachably connected to the water inlet and water outlet of the coil, respectively.

[0008] Furthermore, heat dissipation fins are provided between the coils.

[0009] Furthermore, the coils are detachably installed on the frame of the crossflow closed cooling tower, divided into two groups and arranged on both sides of the frame.

[0010] Furthermore, the water pipe structure also includes a spray water system, which includes a spray pump, a spray pipe, and a water distributor. The water distributor is located on the upper part of the frame, above the coils and heat sinks. The spray pump is located at the bottom of the frame and is connected to the water distributor through the spray pipe.

[0011] Furthermore, the spray water circuit also includes a water tray and a spray inlet pipe. The water tray is located at the bottom of the frame and receives the water sprayed onto the coils and heat sinks. The spray pump is connected to the water tray through the spray inlet pipe.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention arranges the inlet and outlet water pipes inside the coil, so that the inlet and outlet water pipes no longer obstruct the movement of the coil during maintenance and disassembly, greatly reducing the difficulty of operation. Attached Figure Description

[0014] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0015] Figure 1 This is a schematic diagram of a conventional crossflow closed-circuit cooling tower.

[0016] Figure 2 This is a schematic diagram of the water pipe structure of a crossflow closed cooling tower according to one embodiment of the present disclosure.

[0017] Figure 3 This is a schematic diagram of the spray water circuit of a crossflow closed cooling tower according to one embodiment of the present disclosure.

[0018] The specific labels in the attached figures are as follows:

[0019] Water inlet pipe-1, water outlet pipe-2, coil-3, water inlet pipe-4, water outlet pipe-5, rack-6, heat sink-7, spray pump-8, spray pipe-9, water diffuser-10, water tray-11, spray water inlet pipe-12. Detailed Implementation

[0020] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0021] like Figures 1-3 As shown, the present invention discloses a water pipe structure for a crossflow closed-circuit cooling tower. The main water pipes in the crossflow closed-circuit cooling tower include cooling water pipes for external water sources to enter and exit, as well as spray water pipes. In the prior art, the main obstacle to the maintenance and dismantling of the coil is the cooling water pipes. The main improvement of this solution is that the inlet and outlet water pipes in the cooling water pipes are arranged on both sides of the coil, which affects the operation.

[0022] The waterway pipe structure comprises a water inlet pipe 1, a water outlet pipe 2, a coil pipe 3, a water inlet branch pipe 4 and a water outlet branch pipe 5. The water inlet pipe 1 is communicated with the water inlet of the coil pipe 3 through the water inlet branch pipe 4. The water outlet pipe 2 is communicated with the water outlet of the coil pipe 3 through the water outlet branch pipe 5. The connection between the water inlet branch pipe 4 and the coil pipe 3 and the connection between the water outlet branch pipe 5 and the coil pipe 3 are detachable, so that the coil pipe 3 can be removed and repaired at any time. The water inlet branch pipe 4 and the water outlet branch pipe 5 are arranged inside the coil pipe 3. During maintenance, the personnel only need to stand in the cross flow closed cooling tower and directly operate. When the coil pipe 3 is removed, the coil pipe can be directly taken out by a crane. The water inlet pipe 1 and the water outlet pipe 2 are arranged below the rack 6 of the cross flow closed cooling tower and are communicated with the water inlet branch pipe 4 and the water outlet branch pipe 5, respectively.

[0023] The coil pipe in the scheme is a heat dissipation coil pipe with a layered and multi-section modular design structure. Thus, the damaged part can be replaced according to the working condition of the coil pipe.

[0024] In the structure of the cross flow closed cooling tower, the heat dissipation sheet 7 is arranged between the coil pipes 3 to improve the heat dissipation effect of the coil pipe 3.

[0025] In the specific scheme, the coil pipe 3 is detachably mounted on the rack 6 of the cross flow closed cooling tower and is arranged on both sides of the rack 6, that is, the water inlet branch pipe 4 and the water outlet branch pipe 5 are arranged in the middle part of the rack 6.

[0026] The spray waterway in the scheme comprises a spray pump 8, a spray pipe 9, a water distributor 10, a water tray 11 and a spray water inlet pipe 12. The water distributor 10 is arranged on the upper part of the rack 6 and is located above the coil pipe 3 and the heat dissipation sheet 7. The spray pump 8 is arranged on the bottom of the rack 6 and is communicated with the water distributor 10 through the spray pipe 9. The water tray 11 is arranged on the bottom of the rack 6 and receives the water sprayed on the coil pipe 3 and the heat dissipation sheet 7. The spray pump 8 is communicated with the water tray 11 through the spray water inlet pipe 12.

[0027] In addition, it should be noted that the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0028] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present disclosure and are not intended to limit the scope of the present disclosure. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A water channel structure of a cross-flow closed cooling tower, comprising a water inlet pipe, a water outlet pipe, a coil pipe, a water inlet sub-pipe and a water outlet sub-pipe, the water inlet pipe being communicated with a water inlet of the coil pipe through the water inlet sub-pipe, and the water outlet pipe being communicated with a water outlet of the coil pipe through the water outlet sub-pipe, characterized in that, The water inlet branch pipes and the water outlet branch pipes are arranged inside the coil pipes, the water inlet pipes and the water outlet pipes are arranged below the rack of the cross flow closed cooling tower and are communicated with the water inlet branch pipes and the water outlet branch pipes respectively.

2. The water channel pipe structure of a crossflow closed cooling tower according to claim 1, wherein: The coil pipe is a heat dissipation coil pipe with upper and lower layered and multi-section modular design structure.

3. The waterway pipe structure of a crossflow closed cooling tower according to claim 1, wherein: The water inlet branch pipes and the water outlet branch pipes are respectively detachably connected with the water inlets and the water outlets of the coil pipes.

4. The water channel pipe structure of the crossflow closed cooling tower according to claim 2, characterized by: The coil pipes are provided with heat dissipation sheet materials therebetween.

5. The waterway pipe structure of a crossflow closed cooling tower according to claim 2, wherein: The coil pipes are detachably mounted on the rack of the cross flow closed cooling tower and are divided into two groups and arranged on both sides of the rack.

6. The water channel pipe structure of the crossflow closed cooling tower according to claim 5, wherein: The water channel pipe structure further comprises a spraying water channel, the spraying water channel comprises a spraying pump, a spraying pipe and a water disperser, the water disperser is arranged on the upper part of the rack and is located above the coil pipes and the heat dissipation sheet materials, the spraying pump is arranged on the bottom of the rack and is communicated with the water disperser through the spraying pipe.

7. The waterway pipe structure of a crossflow closed cooling tower according to claim 6, wherein: The spraying water channel further comprises a water tray and a spraying water inlet pipe, the water tray is arranged on the bottom of the rack and receives the water sprayed on the coil pipes and the heat dissipation sheet materials, and the spraying pump is communicated with the water tray through the spraying water inlet pipe.

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