CN209960768U

CN209960768U - Equal temperature field fluid heater

Info

Publication number: CN209960768U
Application number: CN201822087390.7U
Authority: CN
Inventors: 戚洪明
Original assignee: HUANENG WUXI ELECTROTHERMAL EQUIPMENT CO Ltd
Current assignee: Wuxi Huaneng Electric Heating Equipment Co ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2020-01-17
Anticipated expiration: 2028-12-13

Abstract

The utility model discloses a fluid heater with equal temperature field belongs to firing equipment technical field. The isothermal field fluid heater comprises a casting and a spiral pipe cast in the casting; wherein, the spiral pipe is a double-spiral pipe wound by double spirals. The casting structure has better heat-conducting property and more uniform heat transfer compared with the prior radiation structure, so that the surface power density of the spiral tube and the power density of the electric heating element can be greatly increased, the whole volume and materials of the fluid heater can be greatly reduced, and the competitiveness of the product is increased. The cold fluid and the hot fluid alternately flow in the double spiral pipes, so that the temperature field is uniform.

Description

Equal temperature field fluid heater

Technical Field

The utility model relates to a firing equipment technical field, in particular to temperature field fluid heater waits.

Background

The traditional fluid heater adopts a circulating heater structure, an electric heating element is inserted into a pipeline or a container, and a medium flows through the pipeline or the container and exchanges heat with the electric heating element to achieve the purpose of heating. The disadvantage is that the temperature field is not uniform during the heating of the fluid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equal temperature field fluid heater to solve current fluid heater inhomogeneous problem in temperature field when heating the fluid.

In order to solve the technical problem, the utility model provides an isothermal field fluid heater, which comprises a casting piece and a spiral pipe cast in the casting piece; wherein, the spiral pipe is a double-spiral pipe wound by double spirals.

Optionally, the isothermal field fluid heater further comprises a plurality of electrical heating elements, each of the plurality of electrical heating elements being cast in the casting.

Optionally, a temperature sensor is further cast in the casting.

Optionally, the casting is made of metal or alloy.

Optionally, the material of the casting comprises aluminum, copper and steel.

Optionally, the spiral pipe is provided with an inlet and an outlet, and both the inlet and the outlet are exposed outside the casting piece.

The utility model provides an isothermal field fluid heater, which comprises a casting piece and a spiral pipe cast in the casting piece; wherein, the spiral pipe is a double-spiral pipe wound by double spirals. The casting structure has better heat-conducting property and more uniform heat transfer compared with the prior radiation structure, so that the surface power density of the spiral tube and the power density of the electric heating element can be greatly increased, the whole volume and materials of the fluid heater can be greatly reduced, and the competitiveness of the product is increased. The cold fluid and the hot fluid alternately flow in the double spiral pipes, so that the temperature field is uniform.

Drawings

Fig. 1 is a schematic structural view of a fluid heater with an equal temperature field provided by the present invention;

fig. 2 is a schematic structural diagram of a double-spiral tube provided by the present invention.

Detailed Description

The present invention provides an isothermal field fluid heater, which is described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a fluid heater with equal temperature field, which is used for heating gas, liquid and other fluids and has the structure as shown in figure 1. The isothermal field fluid heater comprises a casting part 1 and a spiral pipe 2 cast in the casting part 1; the spiral tube 2 is a double-spiral tube wound by double spirals. The spiral pipe 2 is opened with an inlet 21 and an outlet 22, and both the inlet 21 and the outlet 22 are exposed to the outside of the casting 1 for the inflow and outflow of fluid.

Specifically, the constant temperature field fluid heater further comprises a plurality of electric heating elements 3, and the plurality of electric heating elements 3 are cast in the casting 1 for generating heat. In the first embodiment, the number of the electric heating elements 3 is one, as shown in fig. 1. And a temperature sensor 4 is also cast in the casting 1 and used for monitoring the temperature. Further, the casting 1 is made of metal or alloy; furthermore, the casting 1 may be made of aluminum, copper or steel, and has better heat conductivity.

The coil 2, the heating element 3 and the temperature sensor 4 are cast together and co-cast in a casting 1. Because the casting heat transfer is conduction heat transfer, the conduction heat transfer has better heat transfer effect and more uniform heat transfer compared with the prior radiation structure. On the other hand, because the heat transfer effect of the casting is good, the surface power density of the spiral pipe 2 and the power density of the electric heating element 3 can be greatly increased, the whole volume and materials of the fluid heater can be greatly reduced, and the competitiveness of the product is increased.

The spiral tube 2 is a double-spiral tube wound by double spirals, and the structure of the spiral tube is shown in figure 2. When fluid enters the coil 2 from the inlet 21 as shown in fig. 1, the cold fluid flows downwardly in the direction of the solid arrows, while the heating element 3 heats the casting 1, transferring heat through the casting 1 to the coil 2. The cold fluid flowing in exchanges heat with the spiral pipe 2 to achieve the purpose of heating; the heated fluid flows upwardly in the direction of the dotted arrows in fig. 1 until exiting the outlet 22. The cold fluid and the hot fluid flow alternately, so that the temperature field is uniform. The equal temperature field fluid heater can be externally insulated or placed in an insulated box, so that heat loss is avoided, and heat can be absorbed by fluid to the maximum extent.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. An isothermal field fluid heater comprising a casting and a helical tube cast in the casting; wherein the spiral pipe is a double-spiral pipe wound by double spirals; the isothermal field fluid heater also includes a plurality of electrical heating elements, each cast in the casting.

2. The isothermal field fluid heater of claim 1, wherein a temperature sensor is further cast in the casting.

3. The isothermal field fluid heater of claim 2, wherein the material of the casting is a metal or an alloy.

4. The isothermal field fluid heater of claim 3, wherein the material of the casting comprises aluminum, copper, and steel.

5. The isothermal field fluid heater of claim 1, wherein said coil is provided with an inlet and an outlet, and wherein said inlet and said outlet are exposed to the exterior of said casting.